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Thursday, March 21, 2024

Population

From Wikipedia, the free encyclopedia
https://en.wikipedia.org/wiki/Population

Population is the term typically used to refer to the number of people in a single area. Governments conduct a census to quantify the size of a resident population within a given jurisdiction. The term is also applied to non-human animals, microorganisms, and plants, and has specific uses within such fields as ecology and genetics.

Etymology

The word population is derived from the Late Latin populationem (a people, a multitude), which itself is derived from the Latin word populus (a people).

Use of the term

Social sciences

population
Population key

In sociology and population geography, population refers to a group of human beings with some predefined criterion in common, such as location, race, ethnicity, nationality, or religion.

Ecology

In ecology, a population is a group of organisms of the same species who inhabit the same particular geographical area and are capable of interbreeding. The area of a sexual population is the area where inter-breeding is possible between any pair within the area and more probable than cross-breeding with individuals from other areas.

In ecology, the population of a certain species in a certain area can be estimated using the Lincoln index to calculate the total population of an area based on the number of individuals observed.

Dynamics

Population dynamics is the type of mathematics used to model and study the size and age composition of populations as dynamical systems.

Genetics

In genetics, a population is often defined as a set of organisms in which any pair of members can breed together. They can thus routinely exchange gametes in order to have usually fertile progeny, and such a breeding group is also known therefore as a gamodeme. This also implies that all members belong to the same species. If the gamodeme is very large (theoretically, approaching infinity), and all gene alleles are uniformly distributed by the gametes within it, the gamodeme is said to be panmictic. Under this state, allele (gamete) frequencies can be converted to genotype (zygote) frequencies by expanding an appropriate quadratic equation, as shown by Sir Ronald Fisher in his establishment of quantitative genetics.

This seldom occurs in nature: localization of gamete exchange – through dispersal limitations, preferential mating, cataclysm, or other cause – may lead to small actual gamodemes which exchange gametes reasonably uniformly within themselves but are virtually separated from their neighboring gamodemes. However, there may be low frequencies of exchange with these neighbors. This may be viewed as the breaking up of a large sexual population (panmictic) into smaller overlapping sexual populations. This failure of panmixia leads to two important changes in overall population structure: (1) the component gamodemes vary (through gamete sampling) in their allele frequencies when compared with each other and with the theoretical panmictic original (this is known as dispersion, and its details can be estimated using expansion of an appropriate binomial equation); and (2) the level of homozygosity rises in the entire collection of gamodemes. The overall rise in homozygosity is quantified by the inbreeding coefficient (f or φ). All homozygotes are increased in frequency – both the deleterious and the desirable. The mean phenotype of the gamodemes collection is lower than that of the panmictic original – which is known as inbreeding depression. It is most important to note, however, that some dispersion lines will be superior to the panmictic original, while some will be about the same, and some will be inferior. The probabilities of each can be estimated from those binomial equations. In plant and animal breeding, procedures have been developed which deliberately utilize the effects of dispersion (such as line breeding, pure-line breeding, backcrossing). It can be shown that dispersion-assisted selection leads to the greatest genetic advance (ΔG=change in the phenotypic mean), and is much more powerful than selection acting without attendant dispersion. This is so for both allogamous (random fertilization) and autogamous (self-fertilization) gamodemes.

World human population

According to the UN the world's population surpassed 8 billion on 15 November 2022, a gain of 1 billion since 12 March 2012. According to a separate estimate by the United Nations, Earth's population exceeded seven billion in October 2011. According to UNFPA, growth to such an extent offers unprecedented challenges and opportunities to all of humanity.

According to papers published by the United States Census Bureau, the world population hit 6.5 billion on 24 February 2006. The United Nations Population Fund designated 12 October 1999 as the approximate day on which world population reached 6 billion. This was about 12 years after the world population reached 5 billion in 1987, and six years after the world population reached 5.5 billion in 1993. The population of countries such as Nigeria is not even known to the nearest million, so there is a considerable margin of error in such estimates.

Researcher Carl Haub calculated that a total of over 100 billion people have probably been born in the last 2000 years.

Predicted growth and decline

The years taken for every billion people to be added to the world's population, and the years that population was reached (with future estimates).

Population growth increased significantly as the Industrial Revolution gathered pace from 1700 onwards. The last 50 years have seen a yet more rapid increase in the rate of population growth due to medical advances and substantial increases in agricultural productivity, particularly beginning in the 1960s, made by the Green Revolution. In 2017 the United Nations Population Division projected that the world's population will reach about 9.8 billion in 2050 and 11.2 billion in 2100.

PRB 2017 Data Sheet Largest Populations

In the future, the world's population is expected to peak, after which it will decline due to economic reasons, health concerns, land exhaustion and environmental hazards. According to one report, it is very likely that the world's population will stop growing before the end of the 21st century. Further, there is some likelihood that population will actually decline before 2100. Population has already declined in the last decade or two in Eastern Europe, the Baltics and in the Commonwealth of Independent States.

The population pattern of less-developed regions of the world in recent years has been marked by gradually declining birth rates. These followed an earlier sharp reduction in death rates. This transition from high birth and death rates to low birth and death rates is often referred to as the demographic transition.

Population planning

Human population planning is the practice of altering the rate of growth of a human population. Historically, human population control has been implemented with the goal of limiting the rate of population growth. In the period from the 1950s to the 1980s, concerns about global population growth and its effects on poverty, environmental degradation, and political stability led to efforts to reduce population growth rates. While population control can involve measures that improve people's lives by giving them greater control of their reproduction, a few programs, most notably the Chinese government's one-child per family policy, have resorted to coercive measures.

In the 1970s, tension grew between population control advocates and women's health activists who advanced women's reproductive rights as part of a human rights-based approach. Growing opposition to the narrow population control focus led to a significant change in population control policies in the early 1980s.

Extinction debt

From Wikipedia, the free encyclopedia
https://en.wikipedia.org/wiki/Extinction_debt

In ecology, extinction debt is the future extinction of species due to events in the past. The phrases dead clade walking and survival without recovery express the same idea.

Extinction debt occurs because of time delays between impacts on a species, such as destruction of habitat, and the species' ultimate disappearance. For instance, long-lived trees may survive for many years even after reproduction of new trees has become impossible, and thus they may be committed to extinction. Technically, extinction debt generally refers to the number of species in an area likely to become extinct, rather than the prospects of any one species, but colloquially it refers to any occurrence of delayed extinction.

Extinction debt may be local or global, but most examples are local as these are easier to observe and model. It is most likely to be found in long-lived species and species with very specific habitat requirements (specialists). Extinction debt has important implications for conservation, as it implies that species may become extinct due to past habitat destruction, even if continued impacts cease, and that current reserves may not be sufficient to maintain the species that occupy them. Interventions such as habitat restoration may reverse extinction debt.

Immigration credit is the corollary to extinction debt. It refers to the number of species likely to migrate to an area after an event such as the restoration of an ecosystem.

Terminology

The term extinction debt was first used in 1994 in a paper by David Tilman, Robert May, Clarence Lehman and Martin Nowak, although Jared Diamond used the term "relaxation time" to describe a similar phenomenon in 1972.

Extinction debt is also known by the terms dead clade walking and survival without recovery when referring to the species affected. The phrase "dead clade walking" was coined by David Jablonski as early as 2001 as a reference to Dead Man Walking, a film whose title is based on American prison slang for a condemned prisoner's last walk to the execution chamber. "Dead clade walking" has since appeared in other scientists' writings about the aftermaths of mass extinctions.

In discussions of threats to biodiversity, extinction debt is analogous to the "climate commitment" in climate change, which states that inertia will cause the earth to continue to warm for centuries even if no more greenhouse gasses are emitted. Similarly, the current extinction may continue long after human impacts on species halt.

Causes

Extinction debt is caused by many of the same drivers as extinction. The most well-known drivers of extinction debt are habitat fragmentation and habitat destruction. These cause extinction debt by reducing the ability of species to persist via immigration to new habitats. Under equilibrium conditions, a species may become extinct in one habitat patch yet continue to survive because it can disperse to other patches. However, as other patches have been destroyed or rendered inaccessible due to fragmentation, this "insurance" effect is reduced and the species may ultimately become extinct.

Pollution may also cause extinction debt by reducing a species' birth rate or increasing its death rate so that its population slowly declines. Extinction debts may also be caused by invasive species or by climate change.

Extinction debt may also occur due to the loss of mutualist species. In New Zealand, the local extinction of several species of pollinating birds in 1870 has caused a long-term reduction in the reproduction of the shrub species Rhabdothamnus solandri, which requires these birds to produce seeds. However, as the plant is slow-growing and long-lived, its populations persist.

Jablonski recognized at least four patterns in the fossil record following mass extinctions:

(1) survival without recovery
also called “dead clade walking” – a group dwindling to extinction or relegation to precarious, minor ecological niches
(2) continuity with setbacks
patterns disturbed by the extinction event but soon continuing on the previous trajectory
(3) unbroken continuity
large-scale patterns continuing with little disruption
(4) unbridled diversification
an increase in diversity and species richness, as in the mammals following the end-Cretaceous extinction event

Rate of extinction

Jablonski found that the extinction rate of marine invertebrates was significantly higher in the stage (major subdivision of an epoch – typically 2–10 million years' duration) following a mass extinction than in the stages preceding the mass extinction. His analysis focused on marine molluscs since they constitute the most abundant group of fossils and are therefore the least likely to produce sampling errors. Jablonski suggested that two possible explanations deserved further study:

  • Post-extinction physical environments differed from pre-extinction environments in ways which were disadvantageous to the "dead clades walking".
  • Ecosystems that developed after recoveries from mass extinctions may have been less favorable for the "dead clades walking".

Time scale

The time to "payoff" of extinction debt can be very long. Islands that lost habitat at the end of the last ice age 10,000 years ago still appear to be losing species as a result. It has been shown that some bryozoans, a type of microscopic marine organism, became extinct due to the volcanic rise of the Isthmus of Panama. This event cut off the flow of nutrients from the Pacific Ocean to the Caribbean 3–4.5 million years ago. While bryozoan populations dropped severely at this time, extinction of these species took another 1–2 million years.

Extinction debts incurred due to human actions have shorter timescales. Local extinction of birds from rainforest fragmentation occurs over years or decades, while plants in fragmented grasslands show debts lasting 50–100 years. Tree species in fragmented temperate forests have debts lasting 200 years or more.

Theoretical development

Origins in metapopulation models

Tilman et al. demonstrated that extinction debt could occur using a mathematical ecosystem model of species metapopulations. Metapopulations are multiple populations of a species that live in separate habitat patches or islands but interact via immigration between the patches. In this model, species persist via a balance between random local extinctions in patches and colonization of new patches. Tilman et al. used this model to predict that species would persist long after they no longer had sufficient habitat to support them. When used to estimate extinction debts of tropical tree species, the model predicted debts lasting 50–400 years.

One of the assumptions underlying the original extinction debt model was a trade-off between species' competitive ability and colonization ability. That is, a species that competes well against other species, and is more likely to become dominant in an area, is less likely to colonize new habitats due to evolutionary trade-offs. One of the implications of this assumption is that better competitors, which may even be more common than other species, are more likely to become extinct than rarer, less competitive, better dispersing species. This has been one of the more controversial components of the model, as there is little evidence for this trade-off in many ecosystems, and in many empirical studies dominant competitors were least likely species to become extinct. A later modification of the model showed that these trade-off assumptions may be relaxed, but need to exist partially, in order for the theory to work.

Development in other models

Further theoretical work has shown that extinction debt can occur under many different circumstances, driven by different mechanisms and under different model assumptions. The original model predicted extinction debt as a result of habitat destruction in a system of small, isolated habitats such as islands. Later models showed that extinction debt could occur in systems where habitat destruction occurs in small areas within a large area of habitat, as in slash-and-burn agriculture in forests, and could also occur due to decreased growth of species from pollutants. Predicted patterns of extinction debt differ between models, though. For instance, habitat destruction resembling slash-and-burn agriculture is thought to affect rare species rather than poor colonizers. Models that incorporate stochasticity, or random fluctuation in populations, show extinction debt occurring over different time scales than classic models.

Most recently, extinction debts have been estimated through the use models derived from neutral theory. Neutral theory has very different assumptions than the metapopulation models described above. It predicts that the abundance and distribution of species can be predicted entirely through random processes, without considering the traits of individual species. As extinction debt arises in models under such different assumptions, it is robust to different kinds of models. Models derived from neutral theory have successfully predicted extinction times for a number of bird species, but perform poorly at both very small and very large spatial scales.

Mathematical models have also shown that extinction debt will last longer if it occurs in response to large habitat impacts (as the system will move farther from equilibrium), and if species are long-lived. Also, species just below their extinction threshold, that is, just below the population level or habitat occupancy levels required sustain their population, will have long-term extinction debts. Finally, extinction debts are predicted to last longer in landscapes with a few large patches of habitat, rather than many small ones.

Detection

Extinction debt is difficult to detect and measure. Processes that drive extinction debt are inherently slow and highly variable (noisy), and it is difficult to locate or count the very small populations of near-extinct species. Because of these issues, most measures of extinction debt have a great deal of uncertainty.

Experimental evidence

Due to the logistical and ethical difficulties of inciting extinction debt, there are few studies of extinction debt in controlled experiments. However, experiments microcosms of insects living on moss habitats demonstrated that extinction debt occurs after habitat destruction. In these experiments, it took 6–12 months for species to die out following the destruction of habitat.

Observational methods

Long-term observation

Extinction debts that reach equilibrium in relatively short time scales (years to decades) can be observed via measuring the change in species numbers in the time following an impact on habitat. For instance, in the Amazon rainforest, researchers have measured the rate at which bird species disappear after forest is cut down. As even short-term extinction debts can take years to decades to reach equilibrium, though, such studies take many years and good data are rare.

Comparing the past and present

Most studies of extinction debt compare species numbers with habitat patterns from the past and habitat patterns in the present. If the present populations of species are more closely related to past habitat patterns than present, extinction debt is a likely explanation. The magnitude of extinction debt (i.e., number of species likely to become extinct) can not be estimated by this method.

If one has information on species populations from the past in addition to the present, the magnitude of extinction debt can be estimated. One can use the relationship between species and habitat from the past to predict the number of species expected in the present. The difference between this estimate and the actual number of species is the extinction debt.

This method requires the assumption that in the past species and their habitat were in equilibrium, which is often unknown. Also, a common relationship used to equate habitat and species number is the species-area curve, but as the species-area curve arises from very different mechanisms than those in metapopulation based models, extinction debts measured in this way may not conform with metapopulation models' predictions. The relationship between habitat and species number can also be represented by much more complex models that simulate the behavior of many species independently.

Comparing impacted and pristine habitats

If data on past species numbers or habitat are not available, species debt can also be estimated by comparing two different habitats: one which is mostly intact, and another which has had areas cleared and is smaller and more fragmented. One can then measure the relationship of species with the condition of habitat in the intact habitat, and, assuming this represents equilibrium, use it to predict the number of species in the cleared habitat. If this prediction is lower than the actual number of species in the cleared habitat, then the difference represents extinction debt. This method requires many of the same assumptions as methods comparing the past and present.

Examples

Grasslands

Studies of European grasslands show evidence of extinction debt through both comparisons with the past and between present-day systems with different levels of human impacts. The species diversity of grasslands in Sweden appears to be a remnant of more connected landscapes present 50 to 100 years ago. In alvar grasslands in Estonia that have lost area since the 1930s, 17–70% of species are estimated to be committed to extinction. However, studies of similar grasslands in Belgium, where similar impacts have occurred, show no evidence of extinction debt. This may be due to differences in the scale of measurement or the level of specialization of grass species.

Forests

Forests in Flemish Brabant, Belgium, show evidence of extinction debt remaining from deforestation that occurred between 1775 and 1900. Detailed modeling of species behavior, based on similar forests in England that did not experience deforestation, showed that long-lived and slow-growing species were more common than equilibrium models would predict, indicating that their presence was due to lingering extinction debt.

In Sweden, some species of lichens show an extinction debt in fragments of ancient forest. However, species of lichens that are habitat generalists, rather than specialists, do not.

Insects

Extinction debt has been found among species of butterflies living in the grasslands on Saaremaa and Muhu – islands off the western coast of Estonia. Butterfly species distributions on these islands are better explained by the habitat in the past than current habitats.

On the islands of the Azores Archipelago, more than 95% of native forests have been destroyed in the past 600 years. As a result, more than half of arthropods on these islands are believed to be committed to extinction, with many islands likely to lose more than 90% of species.

Vertebrates

Of extinction from past deforestation in the Amazon, 80–90% has yet to occur, based on modeling based on species-area relationships. Local extinctions of approximately 6 species are expected in each 2500 km2 region by 2050 due to past deforestation. Birds in the Amazon rain forest continued to become extinct locally for 12 years following logging that broke up contiguous forest into smaller fragments. The extinction rate slowed, however, as forest regrew in the spaces in between habitat fragments.

Countries in Africa are estimated to have, on average, a local extinction debt of 30% for forest-dwelling primates. That is, they are expected to have 30% of their forest primate species to become extinct in the future due to loss of forest habitat. The time scale for these extinctions has not been estimated.

Based on historical species-area relationships, Hungary currently has approximately nine more species of raptors than are thought to be able to be supported by current nature reserves.

Applications to conservation

The existence of extinction debt in many different ecosystems has important implications for conservation. It implies that in the absence of further habitat destruction or other environmental impacts, many species are still likely to become extinct. Protection of existing habitats may not be sufficient to protect species from extinction. However, the long time scales of extinction debt may allow for habitat restoration in order to prevent extinction, as occurred in the slowing of extinction in Amazon forest birds above. In another example, it has been found that grizzly bears in very small reserves in the Rocky Mountains are likely to become extinct, but this finding allows the modification of reserve networks to better support their populations.

The extinction debt concept may require revision of the value of land for species conservation, as the number of species currently present in a habitat may not be a good measure of the habitat's ability to support species (see carrying capacity) in the future. As extinction debt may last longest near extinction thresholds, it may be hardest to detect the threat of extinction for species that conservation could benefit the most.

Economic analyses have shown that including extinction in management decision-making process changes decision outcomes, as the decision to destroy habitat changes conservation value in the future as well as the present. It is estimated that in Costa Rica, ongoing extinction debt may cost between $88 million and $467 million.

In popular culture

  • An episode of the CBS series Elementary was named "Dead Clade Walking".
  • Environmental justice

    From Wikipedia, the free encyclopedia
     
    Environmental justice or eco-justice, is a social movement to address environmental injustice, which occurs when poor or marginalized communities are harmed by hazardous waste, resource extraction, and other land uses from which they do not benefit. The movement has generated hundreds of studies showing that exposure to environmental harm is inequitably distributed.

    The movement began in the United States in the 1980s. It was heavily influenced by the American civil rights movement and focused on environmental racism within rich countries. The movement was later expanded to consider gender, international environmental injustice, and inequalities within marginalised groups. As the movement achieved some success in rich countries, environmental burdens were shifted to the Global South (as for example through extractivism or the global waste trade). The movement for environmental justice has thus become more global, with some of its aims now being articulated by the United Nations. The movement overlaps with movements for Indigenous land rights and for the human right to a healthy environment.

    The goal of the environmental justice movement is to achieve agency for marginalised communities in making environmental decisions that affect their lives. The global environmental justice movement arises from local environmental conflicts in which environmental defenders frequently confront multi-national corporations in resource extraction or other industries. Local outcomes of these conflicts are increasingly influenced by trans-national environmental justice networks.

    Environmental justice scholars have produced a large interdisciplinary body of social science literature that includes contributions to political ecology, environmental law, and theories on justice and sustainability.

    Definitions

    Low-income workers in Ghana recycling waste from high-income countries, with recycling conditions heavily polluting the Agbogbloshie area

    Environmental justice is typically defined as distributive justice, which is the equitable distribution of environmental risks and benefits. Some definitions address procedural justice, which is the fair and meaningful participation in decision-making. Other scholars emphasise recognition justice, which is the recognition of oppression and difference in environmental justice communities. People's capacity to convert social goods into a flourishing community is a further criteria for a just society. However, initiatives have been taken to expand the notion of environmental justice beyond the three pillars of distribution, participation, and recognition to also include the dimensions of self-governing authority, relational ontologies, and epistemic justice.

    The United States Environmental Protection Agency defines environmental justice as:

    the fair treatment and meaningful involvement of all people regardless of race, color, national origin, or income, with respect to the development, implementation, and enforcement of environmental laws, regulations, and policies.

    Environmental justice is also discussed as environmental racism or environmental inequality.

    Joan Martinez-Alier's influential concept of the environmentalism of the poor highlights the ways in which marginalized communities, particularly those in the Global South, are disproportionately affected by environmental degradation and the importance of including their perspectives and needs in environmental decision-making. Martinez-Alier's work also introduces the concept of "ecological distribution conflicts," which are conflicts over access to and control of natural resources and the environmental impacts that result from their use, and which are often rooted in social and economic inequalities.

    There are various ways everyone can enjoy environmental justice, which includes:  

    • The same degree of protection from environmental and health hazards, and
    • Equal access to the decision-making process to have a healthy environment in which to live, learn, and work.

    History

    Highway marker in Afton commemorating the 1982 North Carolina PCB landfill protests

    The origins of the environmental justice movement can be traced to the Indigenous environmental movement, which has roots in over 500 years of colonialism and ongoing struggles for sovereignty and land rights. Use of the terms 'environmental justice' and 'environmental racism' began in the United States with the 1982 PCB protests in Warren County, North Carolina. Dumping of PCB contaminated soil in the predominately Black community of Afton sparked massive protests, and over 500 people were arrested.

    In response to these protests, the Commission for Racial Justice studied the placement of hazardous waste facilities in the US and found that race was the most important factor predicting placement of these facilities. These studies were followed by widespread objections and lawsuits against hazardous waste disposal in poor, generally Black, communities. The mainstream environmental movement began to be criticised for its predominately white affluent leadership, emphasis on conservation, and failure to address social equity concerns.

    Emergence of global movement

    Throughout the 1970s and 1980s, grassroots movements and environmental organizations advocated for regulations that increased the costs of hazardous waste disposal in the US and other industrialized nations. However, this led to a surge in exports of hazardous waste to the Global South during the 1980s and 1990s. This global environmental injustice, including the disposal of toxic waste, land appropriation, and resource extraction, sparked the formation of the global environmental justice movement.

    The formalization of international environmental justice commenced with the First National People of Color Environmental Leadership Summit in 1991, held in Washington, DC. Attended by over 650 delegates from various countries, the summit adopted 17 principles of environmental justice, which were later disseminated at the 1992 Earth Summit in Rio. Principle 10 of the Rio Declaration on Environment and Development emphasized individuals' rights to access information on environmental matters, participate in decisions, and seek justice.

    Initially, the environmental justice movement focused on addressing toxic hazards and injustices faced by marginalized racial groups within affluent nations. However, during the 1991 Leadership Summit, its scope broadened to encompass public health, worker safety, land use, transportation, and other issues. Over time, the movement expanded further to include considerations of gender, international injustices, and intra-group disparities among disadvantaged populations.

    Scope

    Environmental justice has evolved into a comprehensive global movement, introducing numerous concepts to political ecology, including ecological debt, environmental racism, climate justice, food sovereignty, corporate accountability, ecocide, sacrifice zones, and environmentalism of the poor. It aims to augment human rights law, which traditionally overlooked the relationship between the environment and human rights. Despite attempts to integrate environmental protection into human rights law, challenges persist, particularly concerning climate justice.

    Scholars such as Kyle Powys Whyte and Dina Gilio-Whitaker have extended the discourse on environmental justice concerning Indigenous peoples and settler-colonialism. Gilio-Whitaker critiques distributive justice, which assumes a capitalistic commodification of land inconsistent with Indigenous worldviews. Whyte explores environmental justice within the context of colonialism's catastrophic environmental impacts on Indigenous peoples' traditional livelihoods and identities.

    Environmental discrimination and conflict

    The environmental justice movement seeks to address environmental discrimination and environmental racism associated with hazardous waste disposal, resource extraction, land appropriation, and other activities. This environmental discrimination results in the loss of land-based traditions and economies, armed violence (especially against women and indigenous people) environmental degradation, and environmental conflict. The global environmental justice movement arises from these local place-based conflicts in which local environmental defenders frequently confront multi-national corporations. Local outcomes of these conflicts are increasingly influenced by trans-national environmental justice networks.

    There are many divisions along which unjust distribution of environmental burdens may fall. Within the US, race is the most important determinant of environmental injustice. In some other countries, poverty or caste (India) are important indicators. Tribal affiliation is also important in some countries. Environmental justice scholars Laura Pulido and David Pellow argue that recognizing environmental racism as an element stemming from the entrenched legacies of racial capitalism is crucial to the movement, with white supremacy continuing to shape human relationships with nature and labor.

    Environmental racism

    Environmental racism is a pervasive and complex issue that affects communities all over the world. It is a form of systemic discrimination that is grounded in the intersection of race, class, and environmental factors. At its core, environmental racism refers to the disproportionate exposure of certain communities, mostly those that are marginalised, to environmental hazards such as pollution, toxic waste, and other environmental risks. These communities are often located near industrial sites, waste facilities, and other sources of pollution that can have serious health impacts. Environmental racism has a long and troubling history, with many examples dating back to the early 20th century. For instance, the practice of "redlining" in the US, which involved denying loans and insurance to communities of colour, often led to these communities being located in areas with high levels of pollution and environmental hazards. Today, environmental racism continues to be a significant environmental justice issue, with many low-income communities and communities of colour facing disproportionate exposure to pollution and other environmental risks. This can have serious consequences for the health and well-being of these communities, leading to higher rates of asthma, cancer, and other illnesses. Addressing environmental racism requires a multifaceted approach that tackles the underlying social, economic, and political factors that contribute to its persistence. More particularly, environmental justice scholars from Latin America and elsewhere advocate to understand this issue through the lens of decolonisation. The latter underlies the fact that environmental racism emanates from the colonial projects of the West and its current reproduction of colonial dynamics.

    Hazardous waste

    As environmental justice groups have grown more successful in developed countries such as the United States, the burdens of global production have been shifted to the Global South where less-strict regulations make waste disposal cheaper. Export of toxic waste from the US escalated throughout the 1980s and 1990s. Many impacted countries do not have adequate disposal systems for this waste, and impacted communities are not informed about the hazards they are being exposed to.

    The Khian Sea waste disposal incident was a notable example of environmental justice issues arising from international movement of toxic waste. Contractors disposing of ash from waste incinerators in Philadelphia, Pennsylvania illegally dumped the waste on a beach in Haiti after several other countries refused to accept it. After more than ten years of debate, the waste was eventually returned to Pennsylvania. The incident contributed to the creation of the Basel Convention that regulates international movement of toxic waste.

    Land appropriation

    Countries in the Global South disproportionately bear the environmental burden of global production and the costs of over-consumption in Western societies. This burden is exacerbated by changes in land use that shift vast tracts of land away from family and subsistence farming toward multi-national investments in land speculation, agriculture, mining, or conservation. Land grabs in the Global South are engendered by neoliberal ideology and differences in legal frameworks, land prices, and regulatory practices that make countries in the Global South attractive to foreign investments. These land grabs endanger indigenous livelihoods and continuity of social, cultural, and spiritual practices. Resistance to land appropriation through transformative social action is also made difficult by pre-existing social inequity and deprivation; impacted communities are often already struggling just to meet their basic needs.

    Water

    Access to clean water is an indispensable aspect of human life, yet it remains very unequal, disproportionately affecting marginalized communities globally. The burden of water scarcity is particularly noticeable in impoverished urban settings and remote rural areas where inadequate infrastructure, limited financial resources, and environmental degradation converge to create formidable challenges. Marginalized populations, often already grappling with systemic inequalities, encounter heightened vulnerabilities when it comes to securing safe and reliable water sources. Discriminatory practices can further compound these challenges. The ramifications of limited water access are profound, permeating various facets of daily life, including health, education, and overall well-being. Recognizing and addressing these disparities is not only a matter of justice but also crucial for sustainable development. Consequently, there must be efforts towards implementing inclusive water management strategies that prioritize the specific needs of marginalized communities, ensuring equitable access to this fundamental resource and fostering resilience in the face of global water challenges. One way this has been proposed is through Community Based Participatory Development. When this has been applied, as in the case of the Six Nations Indigenous peoples in Canada working with McMaster University researchers, it has shown how community-led sharing and integrating of science and local knowledge can be partnered in response to water quality.

    Resource extraction

    Resource extraction is a prime example of a tool based on colonial dynamics that engenders environmental racism. Hundreds of studies have shown that marginalized communities, often indigenous communities, are disproportionately burdened by the negative environmental consequences of resource extraction. Communities near valuable natural resources are frequently saddled with a resource curse wherein they bear the environmental costs of extraction and a brief economic boom that leads to economic instability and ultimately poverty. Indigenous communities living near valuable natural resources face even more discrimination, since they are in most cases simply displaced from their home. Power disparities between extraction industries and impacted communities lead to acute procedural injustice in which local communities are unable to meaningfully participate in decisions that will shape their lives.

    Council member Debora Juarez gives a speech at the designation of May 5th as Seattle's Day of Awareness for Missing and Murdered Indigenous Women and Girls.

    Studies have also shown that extraction of critical minerals, timber, and petroleum may be associated with armed violence in communities that host mining operations. The government of Canada found that resource extraction leads to missing and murdered indigenous women in communities impacted by mines and infrastructure projects such as pipelines. The Environmental Justice Atlas, that documents conflicts of environmental justice, demonstrates multiple conflicts with high violence on indigenous populations around resource extraction.

    Unequal exchange

    Unequal exchange is a term used to describe the unequal economic and trade relationship between countries from the Global North and the Global South. The idea is that the exchange of goods and services between these countries is not equal, with Global North countries benefiting more than the others. This occurs for a variety of reasons such as differences in labor costs, technology, and access to resources. Unequal exchange perceives this framework of trade through the lens of decolonisation: colonial power dynamics have led to a trade system where northern countries can trade their knowledge and technology at a very high price against natural resources, materials and labor at a very low price from southern countries. This is kept in place by mechanisms such as enforceable patents, trade regulations and price setting by institutions such as the World Bank or the International Monetary Fund, where northern countries hold most of the voting power. Hence, unequal exchange is a phenomenon that is based on and perpetuates colonial relationships, as it leads to exploitation and enforces existing inequalities between countries of the Global North and Global South. This interdependence also explains the differences in CO2 emissions between northern and southern countries: evidently, since northern countries use many resources and materials of the South, they produce and pollute more.

    Health impacts of disparate exposure in EJ communities

    Environmental justice communities that are disproportionately exposed to chemical pollution, reduced air quality, and contaminated water sources may experience overall reduced health.[46] Poverty in these communities can be a factor that increases their exposure to occupational hazards such as chemicals used in agriculture or industry. When workers leave the work environment they may bring chemicals with them on their clothing, shoes, skin, and hair, creating further impacts on their families, including children. Children in EJ communities are uniquely exposed, because they metabolize and absorb contaminants differently than adults. These children are exposed to a higher level of contaminants throughout their lives, beginning in utero (through the placenta), and are at greater risk for adverse health effects like respiratory conditions, gastrointestinal conditions, and mental conditions.

    Fast fashion exposes environmental justice communities to occupational hazards such as poor ventilation that can lead to respiratory problems from inhalation of synthetic particles and cotton dust. Textile dyeing can also expose EJ communities to toxins and heavy metals when untreated wastewater enters water systems used by residents and for livestock. 95% of clothing production takes place in low- or middle-income countries where the workers are under-resourced.

    In environmental law

    Cost barriers

    One of the prominent barriers to minority participation in environmental justice is the initial costs of trying to change the system and prevent companies from dumping their toxic waste and other pollutants in areas with high numbers of minorities living in them. There are massive legal fees involved in fighting for environmental justice and trying to shed environmental racism. For example, in the United Kingdom, there is a rule that the claimant may have to cover the fees of their opponents, which further exacerbates any cost issues, especially with lower-income minority groups; also, the only way for environmental justice groups to hold companies accountable for their pollution and breaking any licensing issues over waste disposal would be to sue the government for not enforcing rules. This would lead to the forbidding legal fees that most could not afford. This can be seen by the fact that out of 210 judicial review cases between 2005 and 2009, 56% did not proceed due to costs.

    Relationships to other movements and philosophies

    Climate justice

    Emissions of the richest 1% are more than twice that of the poorest 50%. Compliance with the Paris Agreement's 1.5°C goal would require the richest 1% to reduce emissions by at least 30 times, while per-person emissions of the poorest 50% could approximately triple.
     
    Though total CO2 emissions (size of pie charts) differ substantially among high-emitting regions, the pattern of higher income classes emitting more than lower income classes is consistent across regions. The world's top 1% of emitters emit over 1000 times more than the bottom 1%.
    Scaling the effect of wealth to the national level: richer (developed) countries emit more CO2 per person than poorer (developing) countries. Emissions are roughly proportional to GDP per person, though the rate of increase diminishes above average GDP/pp of about $10,000.

    Climate change and climate justice have also been a component when discussing environmental justice and the greater impact it has on environmental justice communities. Air pollution and water pollution are two contributors of climate change that can have detrimental effects such as extreme temperatures, increase in precipitation, and a rise in sea level. Because of this, communities are more vulnerable to events including floods and droughts potentially resulting in food scarcity and an increased exposure to infectious, food-related, and water-related diseases. Currently, without sufficient treatment, more than 80% of all wastewater generated globally is released into the environment. High-income nations treat, on average, 70% of the wastewater they produce, according to UN Water.

    It has been projected that climate change will have the greatest impact on vulnerable populations.

    Climate justice has been influenced by environmental justice, especially grassroots climate justice.

    Ocean justice

    The head of "Ocean Collectiv" and "Urban Ocean Lab", marine biologist, Ayana Elizabeth Johnson describes ocean justice as: "where ocean conservation and issues of social equity meet: Who suffers most from flooding and pollution, and who benefits from conservation measures? As sea levels rise and storms intensify, such questions will only grow more urgent, and fairness must be a central consideration as societies figure out how to answer them"

    In December 2023 Biden's administration unveiled a whole strategy to improve ocean justice. The main targets of this strategy:

    Environmental groups supported the decision. According to Beth Lowell, the vice president of Oceana (non-profit group): "Offshore drilling, fisheries management and reducing plastic pollution are just a few of the areas where these voices are needed".

    In the official document summarizing the new strategy, the administration gave several examples of past implementation of those principles. One of them is Mai Ka Po Mai a strategy for the management of the Papahānaumokuākea Marine National Monument near the Hawaiian Islands conceived after consultations with native communities.

    Environmentalism

    Relative to general environmentalism, environmental justice is seen as having a greater focus on the lives of everyday people and being more grassroots. Environmental justice advocates have argued that mainstream environmentalist movements have sometimes been racist and elitist.

    Reproductive justice

    Many participants in the Reproductive Justice Movement see their struggle as linked with those for environmental justice, and vice versa. Loretta Ross describes the reproductive justice framework as addressing "the ability of any woman to determine her own reproductive destiny" and argues this is "linked directly to the conditions in her community – and these conditions are not just a matter of individual choice and access." Such conditions include those central to environmental justice – including the siting of toxic waste and pollution of food, air, and waterways.

    Mohawk midwife Katsi Cook founded the Mother's Milk Project in the 1980s to address the toxic contamination of maternal bodies through exposure to fish and water contaminated by a General Motors Superfund site. In underscoring how contamination disproportionately impacted Akwesasne women and their children through gestation and breastfeeding, this project illustrates the intersections between reproductive and environmental justice. Cook explains that, "at the breasts of women flows the relationship of those generations both to society and to the natural world."

    Steps to accelerate environmental justice

    1. Global acceleration of environmental rule of law: The governments should respect, protect and fulfil the right to a clean and healthy environment, which is key for sustainable development.
    2. Strong national legal frameworks: To help spur equitable and sustainable management of natural resources. These legal frameworks need to incorporate vulnerable, excluded and marginalized communities to access justice, information and participate in decision-making.
    3. Transformation in the way we think: About the rights of future generations and the rights to a healthy environment. It needs to incorporate wide cross-sections of society in the design of environmental policies and decisions.

    Around the world

    Environmental justice campaigns have arisen from local conflicts all over the world. The Environmental Justice Atlas documented 3,100 environmental conflicts worldwide as of April 2020 and emphasised that many more conflicts remained undocumented.

    Africa

    Democratic Republic of the Congo

    Mining for cobalt and copper in the Democratic Republic of the Congo (DRC) has resulted in environmental injustice and numerous environmental conflicts including

    Conflict minerals mined in the DRC perpetuate armed conflict.

    Ethiopia

    Mining for gold and other minerals has resulted in environmental injustice and environmental conflict in Ethiopia including

    • Lega Dembi mine: thousands of people were exposed to mercury by MIDROC corporation, resulting in poisoned food, death of livestock and many miscairrages and birth defects.
    • Kenticha mine

    Kenya

    Kenya has, since independence in 1963, focused on environmental protectionism. Environmental activists such as Wangari Maathai stood for and defend natural and environmental resources, often coming into conflict with the Daniel Arap Moi and his government. The country has suffered Environmental issues arising from rapid urbanization especially in Nairobi, where the public space, Uhuru Park, and game parks such as the Nairobi National Park have suffered encroachment to pave way for infrastructural developments like the Standard Gage Railway and the Nairobi Expressway. One of the environmental lawyers, Kariuki Muigua, has championed environmental justice and access to information and legal protection, authoring the Environmental Justice Thesis on Kenya's milestones.

    Nigeria

    From 1956 to 2006, up to 1.5 million tons of oil were spilled in the Niger Delta, (50 times the volume spilled in the Exxon Valdez disaster). Indigenous people in the region have suffered the loss of their livelihoods as a result of these environmental issues, and they have received no benefits in return for enormous oil revenues extracted from their lands. Environmental conflicts have exacerbated ongoing conflict in the Niger Delta.

    Ogoni people, who are indigenous to Nigeria's oil-rich Delta region have protested the disastrous environmental and economic effects of Shell Oil's drilling and denounced human rights abuses by the Nigerian government and by Shell. Their international appeal intensified dramatically after the execution in 1995 of nine Ogoni activists, including Ken Saro-Wiwa, who was a founder of the nonviolent Movement for the Survival of the Ogoni People (MOSOP).

    South Africa

    Under colonial and apartheid governments in South Africa, thousands of black South Africans were removed from their ancestral lands to make way for game parks. Earthlife Africa was formed in 1988, making it Africa's first environmental justice organisation. In 1992, the Environmental Justice Networking Forum (EJNF), a nationwide umbrella organization designed to coordinate the activities of environmental activists and organizations interested in social and environmental justice, was created. By 1995, the network expanded to include 150 member organizations and by 2000, it included over 600 member organizations.

    With the election of the African National Congress (ANC) in 1994, the environmental justice movement gained an ally in government. The ANC noted "poverty and environmental degradation have been closely linked" in South Africa. The ANC made it clear that environmental inequalities and injustices would be addressed as part of the party's post-apartheid reconstruction and development mandate. The new South African Constitution, finalized in 1996, includes a Bill of Rights that grants South Africans the right to an "environment that is not harmful to their health or well-being" and "to have the environment protected, for the benefit of present and future generations through reasonable legislative and other measures that

    1. prevent pollution and ecological degradation;
    2. promote conservation; and
    3. secure ecologically sustainable development and use of natural resources while promoting justifiable economic and social development".

    South Africa's mining industry is the largest single producer of solid waste, accounting for about two-thirds of the total waste stream. Tens of thousands of deaths have occurred among mine workers as a result of accidents over the last century. There have been several deaths and debilitating diseases from work-related illnesses like asbestosis. For those who live next to a mine, the quality of air and water is poor. Noise, dust, and dangerous equipment and vehicles can be threats to the safety of those who live next to a mine as well. These communities are often poor and black and have little choice over the placement of a mine near their homes. The National Party introduced a new Minerals Act that began to address environmental considerations by recognizing the health and safety concerns of workers and the need for land rehabilitation during and after mining operations. In 1993, the Act was amended to require each new mine to have an Environmental Management Program Report (EMPR) prepared before breaking ground. These EMPRs were intended to force mining companies to outline all the possible environmental impacts of the particular mining operation and to make provision for environmental management.

    In October 1998, the Department of Minerals and Energy released a White Paper entitled A Minerals and Mining Policy for South Africa, which included a section on Environmental Management. The White Paper states "Government, in recognition of the responsibility of the State as custodian of the nation's natural resources, will ensure that the essential development of the country's mineral resources will take place within a framework of sustainable development and in accordance with national environmental policy, norms, and standards". It adds that any environmental policy "must ensure a cost-effective and competitive mining industry."

    Asia

    Noah Diffenbaugh and Marshall Burke in their study of inequality in Asia demonstrated the interactionalism of economic inequality and global warming. For instance, globalization and industrialization increased the chances of global warming. However, industrialization also allowed wealth inequality to perpetuate. For example, New Delhi is the epicenter of the industrial revolution in the Indian continent, but there is significant wealth disparity. Furthermore, because of global warming, countries like Sweden and Norway can capitalize on warmer temperatures, while most of the world's poorest countries are significantly poorer than they would have been if global warming had not occurred.

    China

    Cattle in the River Ganges with pollution on the bank

    In China, factories create harmful waste such as nitrogen oxide and sulfur dioxide which cause health risks. Journalist and science writer Fred Pearce notes that in China "most monitoring of urban air still concentrates on one or at most two pollutants, sometimes particulates, sometimes nitrogen oxides or sulfur dioxides or ozone. Similarly, most medical studies of the impacts of these toxins look for links between single pollutants and suspected health effects such as respiratory disease and cardiovascular conditions." The country emits about a third of all the human-made sulfur dioxide (SO2), nitrogen oxides (NOx), and particulates pollution in the world. The Global Burden of Disease Study, an international collaboration, estimates that 1.1 million Chinese die from the effects of this air pollution each year, roughly a third of the global death toll." The economic cost of deaths due to air pollution is estimated at 267 billion yuan (US$38 billion) per year.

    Indonesia

    Environmental conflicts in Indonesia include:

    • The Arun gas field where ExxonMobil's development of a natural gas export industry contributed to the insurgency in Aceh in which secessionist fighters led by the Free Aceh Movement attempted to gain independence from the central government which had taken billions in gas revenues from the region without much benefit to the Aceh province. Violence directed toward the gas industry led Exxon to contract with the Indonesian military for protection of the Arun field and subsequent human rights abuses in Aceh.

    Malaysia

    Environmental justice movements in Malaysia have arisen from conflicts including:

    South Korea

    Environmental justice movements in South Korea have arisen from conflicts including:

    Australia

    World Environment Day, 5th June 2011, tens of thouands of people rallied around Australia to say Yes to a safe climate and in support of a carbon price.

    Australia has suffered from a number of environmental injustices, which have usually been caused by polluting corporate projects geared towards extracting natural resources. For example, discriminatory siting of nuclear and hazardous waste facilities. These projects have been detrimental to local climates, biodiversity, and the health of local citizen populations from poorer economic areas. They have also faced little resistance from local and national governments, who tend to cite their ‘economic’ benefits. However, these projects have faced strong resistance from environmental justice organizations, community, and indigenous groups. Australia has a prominent Indigenous population, and they often disproportionately face some of the worst impacts of these projects.

    • WestConnex Highway Project, Sydney and New South Wales (NSW)

    The WestConnex Highway Project emerged as an answer to Sydney's lack of infrastructure to cope as a fast growing city. The highway project is currently under construction, covers 33 km of new and improved highway, and will link up to the city's M4 and M5 highways.The newest WestConnex toll roads opened in 2019. The NSW government believe that the highway is the ‘missing link’ to the city's problem of traffic congestion, and has argued that the project will provide further economic benefits such as job creation.

    The WestConnex Action Group (WAG) have said that residents close to the highway have been negatively affected by its high levels of air pollution, caused by an increase in traffic and unventilated smokestacks in its tunnels. Protesters have also argued that the close proximity of the highway will put children especially at risk.

    The highway has faced resistance in a variety of forms, including a long-running occupation camp in Sydney Park, as well as confrontations with police and construction workers that have led to arrests. The WAG has set up a damage register for people whose property has been damaged by the highway, in order to document the extent of the damages, and support those who have been affected. The WAG have done this through campaigning for a damage repaid fund, independent damage assessment and potential class action.

    • Yeelirrie Uranium Mine, Western Australia

    The Yeelirrie Uranium Mine was facilitated by Canadian company Cameco. The mine aimed to dig a 9 km open mine pit and destroy 2,400 hectares of traditional lands, including the Seven Sisters Dreaming Songling, important to the Tjiwarl people. The mine has faced strong resistance from the Tjiwral people, especially its women, for over decade.

    The mine is the largest uranium deposit in the country, and uses nine million litres of water, whilst generating millions of tonnes of radioactive waste. Around 36 million tonnes of this waste will be produced whilst the mine is operational, which is set to be until 2043.

    A group of Tjiwral women took Cameco to court, to initial success. The Environmental Protection Authority (EPA) halted the mine because it was very likely to wipe out several species, including rare stygofauna, the entire western population of a rare saltbush, and harm other wild life like the Malleefowl, Princess parrot and Greater bilby. The state and federal authorities, however, went against the EPA and approved the mine in 2019.

    • SANTOS Barossa offshore gas in Timor Sea, Northern Territory (NT)

    In March 2021, South Australia Northern Territory Oil Search (SANTOS) invested in the Barossa gas field in the Timor sea, NT, to great reception from the NT government, saying that it will provide jobs for the local area. The move was condemned by environmental justice organisations, saying that it will have grave impacts on the climate and biodiversity. Crucially, they stressed that the Tiwi people, owners of the local islands, were not adequately consulted, and were worried that any spills would damage local flatback and Olive Ridley turtle populations.

    This disregard for the Tiwi people sparked protests from a number of groups, including one in front of the SANTOS Darwin headquarters demanding an end to the Barossa gas project. In September 2021, a coalition of environmental justice organisations from Australia, South Korea and Japan, united under the name Stop Barossa Gas to oppose the project. In March 2022, the Tiwi people filed for a court injunction to stop KEXIM and KTIC (Korean development finance institutions) funding the project with almost $1bn. The Tiwi people did this on the basis of a lack of consultation from SANTOS, and the detrimental environmental impacts the project will have. In June 2022, the Tiwi people filed another lawsuit for the same reasons, but this time directly against SANTOS.

    Europe

    The European Environment Agency (EEA) reports that exposure to environmental harms such as pollution is correlated with poverty, and that poorer countries suffer from environmental harms while higher income countries produce the majority of the pollution. Western Europe has more extensive evidence of environmental inequality.

    Romani peoples are ethnic minorities that experience environmental discrimination. Discriminatory laws force Romani people In many countries to live in slums or ghettos with poor access to running water and sewage, or where they are exposed to hazardous wastes.

    The European Union is trying to strive towards environmental justice by putting into effect declarations that state that all people have a right to a healthy environment. The Stockholm Declaration, the 1987 Brundtland Commission's Report – "Our Common Future", the Rio Declaration, and Article 37 of the Charter of Fundamental Rights of the European Union, all are ways that the Europeans have put acts in place to work toward environmental justice.

    Sweden

    Sweden became the first country to ban DDT in 1969. In the 1980s, women activists organized around preparing jam made from pesticide-tainted berries, which they offered to the members of parliament. Parliament members refused, and this has often been cited as an example of direct action within ecofeminism.

    United Kingdom

    Whilst the predominant agenda of the Environmental Justice movement in the United States has been tackling issues of race, inequality, and the environment, environmental justice campaigns around the world have developed and shifted in focus. For example, the EJ movement in the United Kingdom is quite different. It focuses on issues of poverty and the environment, but also tackles issues of health inequalities and social exclusion. A UK-based NGO, named the Environmental Justice Foundation, has sought to make a direct link between the need for environmental security and the defense of basic human rights. They have launched several high-profile campaigns that link environmental problems and social injustices. A campaign against illegal, unreported and unregulated (IUU) fishing highlighted how 'pirate' fisherman are stealing food from local, artisanal fishing communities. They have also launched a campaign exposing the environmental and human rights abuses involved in cotton production in Uzbekistan. Cotton produced in Uzbekistan is often harvested by children for little or no pay. In addition, the mismanagement of water resources for crop irrigation has led to the near eradication of the Aral Sea. The Environmental Justice Foundation has successfully petitioned large retailers such as Wal-mart and Tesco to stop selling Uzbek cotton.

    Building of alternatives to climate change

    In France, numerous Alternatiba events, or villages of alternatives, are providing hundreds of alternatives to climate change and lack of environmental justice, both in order to raise people's awareness and to stimulate behaviour change. They have been or will be organized in over sixty different French and European cities, such as Bilbao, Brussels, Geneva, Lyon or Paris.

    North and Central America

    Belize

    Environmental justice movements arising from local conflicts in Belize include:

    • The government of Belize began granting oil concessions without consulting local communities since 2010, with offshore oil drilling being allowed without consultation with local fishermen or the tourism sector, which are the main economic activities in the area, and affecting Mayan and Garifuna communities. Environmental advocacy group, Oceana, collected over 20,000 signatures in 2011 to trigger a national referendum on offshore oil drilling, however, the government of Belize invalidated over 8,000 signatures, preventing the possibility of an official referendum. In response, Oceana and partner organizations organized an unofficial "People's Referendum," which resulted in 90% of Belizeans voting against offshore exploration and drilling. Belize's Supreme Court declared offshore drilling contracts issued by the Government of Belize in 2004 and 2007 invalid in 2013, but the government reconsidered initiating offshore drilling in 2015, with possible new regulations allowing oil and gas exploration in 99% of Belize's territorial waters. In 2022, Oceana began collecting signatures for another moratorium referendum.
    • Chalillo Dam

    Canada

    Environmental justice movements arising from local conflicts in Canada include:

    Dominican Republic

    Environmental justice movements arising from local conflicts in the Dominican Republic:

    Guatemala

    Environmental justice movements arising from local conflicts in Guatemala include

    El Salvador

    Environmental justice movements arising from local conflicts in El Salvador include:

    The Canadian company Pacific Rim Mining Corporation operates a gold mine on the site of El Dorado, San Isidro, in the department of Cabañas. The mine has had hugely negative impacts on the local environment, including the reduction of accessibility to fresh water due to the water intensive mining process, as well as the contamination of the local water supply, which negatively affected the health of local citizens and their live stock. Also, Salvadorian investigators found dangerously high levels of arsenic in two rivers close to the mine.

    The operations of the mine has caused conflicts, increased divisions in the community, and prompted threats and violence against opposition to the mine. Following the suspension of the project in 2008 due to resistance from local groups, this violence escalated. As of today, at least half a dozen deaths among local group opposing the mine have been related with the presence of Pacific Rim. The strength of opposition to the mine contributed towards a national movement against the project. In 2008 and 2009, both the incumbent and elected Salvadorian presidents agreed publicly to deny the extension of the licence to Pacific Rim to connote its operations. More recently, the new president Sanchéz Cerén stated “mining is not viable in El Salvador.”

    Honduras

    Honduras has experienced a number of environmental justice struggles, particularly related to the mining, hydroelectric, and logging industries. One of the most high-profile cases was the assassination of Berta Caceres, a Honduran indigenous and environmental rights activist who opposed the construction of the Agua Zarca Dam on the Gualcarque River. Caceres' murder in 2016 sparked widespread outrage and drew international attention to the risks faced by environmental and indigenous activists in Honduras.

    Mexico

    Environmental justice movements arising from local conflicts in Mexico include

    Nicaragua

    Environmental justice movements arising from local conflicts in Nicaragua include:

    In 2012, the Nicaraguan government approved the construction of the Grand Canal, which will be 286 km long. A large section of the new canal will run through Lake Nicaragua, which is an important source of fresh water for the country. The canal will also have a width of 83 meters, and depth of 27.5 meters, making it suitable for large-range ships. Related infrastructures include two ports, an airport and an oil pipeline.

    Opponents to the construction of the canal, such as the Coordinadora de la comunidad negra creole indígena de Bluefields (CCNCB), fear the impacts it will have on the biodiversity, and protected areas like Bosawás and the Bluefields wetlands. Opponents also fear the impacts on the Indigenous and tribal people that the canal would displace, such as the Miskito, Ulwa and Creole. To date, the Nicaraguan government has not made public the results of various viability studies.

    Since the approval of the construction of the canal, environmental justice and indigenous groups have presented petitions for review to national courts, as well as one to the International Human Rights Commission. In 2017, these groups suffered a setback, when the National Court rejected the petition to refuse the "Law of the Grand Canal”.

    United States

    Definitions of environmental inequality typically emphasize either 'disparate exposure' (unequal exposure to environmental harm) or 'discriminatory intent' (often based on race). Disparate exposure has health and social impacts. Poverty and race are associated with environmental injustice. Poor people account for more than 20% of the human health impacts from industrial toxic air releases, compared to 12.9% of the population nationwide. Some studies that test statistically for effects of race and ethnicity, while controlling for income and other factors, suggest racial gaps in exposure that persist across all bands of income.

    States may also see placing toxic facilities near poor neighborhoods as preferential from a Cost Benefit Analysis (CBA) perspective. A CBA may favor placing a toxic facility near a city of 20,000 poor people than near a city of 5,000 wealthy people. Terry Bossert of Range Resources reportedly has said that it deliberately locates its operations in poor neighborhoods instead of wealthy areas where residents have more money to challenge its practices. Northern California's East Bay Refinery Corridor is an example of the disparities associated with race and income and proximity to toxic facilities.

    In Seattle, Washington, the Duwamish River Community Coalition (DRCC) was formed in 2001 in response to the designation of the Duwamish River as a Superfund site. DRCC works with local communities and both private and public organizations to address the disparate exposure to air and water pollution families of the Duwamish Valley face. Residents of the Duwamish Valley are a population made of primarily South and Central American immigrants of low income, indigenous peoples, and refugees.

    African-Americans

    African-Americans are affected by a variety of Environmental Justice issues. One notorious example is the "Cancer Alley" region of Louisiana. This 85-mile stretch of the Mississippi River between Baton Rouge and New Orleans is home to 125 companies that produce one quarter of the petrochemical products manufactured in the United States. The nickname was given due to the high rates of residents diagnosed with cancer compared to the United States average. The United States Commission on Civil Rights has concluded that the African-American community has been disproportionately affected by Cancer Alley as a result of Louisiana's current state and local permit system for hazardous facilities, as well as their low socio-economic status and limited political influence. Another incidence of long-term environmental injustice occurred in the "West Grove" community of Miami, Florida. From 1925 to 1970, the predominately poor, African American residents of the "West Grove" endured the negative effects of exposure to carcinogenic emissions and toxic waste discharge from a large trash incinerator called Old Smokey. Despite official acknowledgement as a public nuisance, the incinerator project was expanded in 1961. It was not until the surrounding, predominantly white neighborhoods began to experience the negative impacts from Old Smokey that the legal battle began to close the incinerator.

    More so, many African-American residents have experienced missed or overlooked health issues that were cause by the environmental disparity of their communities. Unfortunately, many of these complications were overlooked by the healthcare industry and comprised the health of those struggling with respiratory and heart problems. The American Heart Association has compiled data analysis that shows the relationship between air pollution exposure and cardiovascular illness and death.

    Indigenous Groups

    Indigenous groups are often the victims of environmental injustices. Native Americans have suffered abuses related to uranium mining in the American West. Churchrock, New Mexico, in Navajo territory was home to the longest continuous uranium mining in any Navajo land. From 1954 until 1968, the tribe leased land to mining companies who did not obtain consent from Navajo families or report any consequences of their activities. Not only did the miners significantly deplete the limited water supply, but they also contaminated what was left of the Navajo water supply with uranium. Kerr-McGee and United Nuclear Corporation, the two largest mining companies, argued that the Federal Water Pollution Control Act did not apply to them, and maintained that Native American land is not subject to environmental protections. The courts did not force them to comply with US clean water regulations until 1980.

    The Inuit community in northern Quebec have faced disproportionate exposure to persistent organic pollutants (POPs) including dioxins and polychlorinated biphenyls (PCBs). Some of these pollutants may include pesticides used decades before in the United States. PCBs bioaccumulate and biomagnify within the fatty tissues of organisms, so the traditional high-fat sea animal diet of the Inuit has posed significant health impacts to both adults and unborn infants. Although the production of PCBs was banned internationally in 2001 by the Stockholm Convention on Persistent Organic Pollutants, they can exist in the environment and biosphere for decades or longer. They pose a significant risk to newborns due to intrauterine exposure and concentration within breast milk.

    Latinos

    The most common example of environmental injustice among Latinos is the exposure to pesticides faced by farmworkers. After DDT and other chlorinated hydrocarbon pesticides were banned in the United States in 1972, farmers began using more acutely toxic organophosphate pesticides such as parathion. A large portion of farmworkers in the US are working as undocumented immigrants, and as a result of their political disadvantage, are not able to protest against regular exposure to pesticides or benefit from the protections of Federal laws. Exposure to chemical pesticides in the cotton industry also affects farmers in India and Uzbekistan. Banned throughout much of the rest of the world because of the potential threat to human health and the natural environment, Endosulfan is a highly toxic chemical, the safe use of which cannot be guaranteed in the many developing countries it is used in. Endosulfan, like DDT, is an organochlorine and persists in the environment long after it has killed the target pests, leaving a deadly legacy for people and wildlife.

    Residents of cities along the US-Mexico border are also affected. Maquiladoras are assembly plants operated by American, Japanese, and other foreign countries, located along the US-Mexico border. The maquiladoras use cheap Mexican labor to assemble imported components and raw material, and then transport finished products back to the United States. Much of the waste ends up being illegally dumped in sewers, ditches, or in the desert. Along the Lower Rio Grande Valley, maquiladoras dump their toxic wastes into the river from which 95 percent of residents obtain their drinking water. In the border cities of Brownsville, Texas, and Matamoros, Mexico, the rate of anencephaly (babies born without brains) is four times the national average.

    Youth

    Held v. Montana was the first state constitutional law climate lawsuit to go to trial in the United States, on June 12, 2023. The case was filed in March 2020 by sixteen youth residents of Montana, then aged 2 through 18, who argued that the state's support of the fossil fuel industry had worsened the effects of climate change on their lives, thus denying their right to a "clean and healthful environment in Montana for present and future generations" as required by the Constitution of Montana. On August 14, 2023, the trial court judge ruled in the youth plaintiffs' favor, though the state indicated it would appeal the decision.

    South America

    Environmental justice struggles have been a significant feature of social and political movements in South America, where communities have faced the impacts of environmental degradation and resource extraction for decades. In particular, mining in South America has led to conflicts between mining companies, governments, and local communities over issues such as land rights, water use, and pollution. Indigenous peoples in particular have been disproportionately affected by mining, with many communities experiencing displacement, loss of traditional livelihoods, and negative health impacts from exposure to toxic chemicals and pollution. A report by Global Witness identifies South America as the most dangerous region in the world for environmental activists, with at least 98 people killed in 2019.

    Argentina

    Environmental justice movements arising from local conflicts in Argentina include

    • Bajo de la Alumbrera mine, Catamarca, Argentina: The Bajo de la Alumbrera mine is an open-pit copper and gold mine located in the northwestern province of Catamarca, Argentina. The mining project began in the late 1990s and has since been the center of a significant environmental justice conflict. The mine is operated by Glencore, which owns 50% of the stocks, while Canadian companies Goldcorp and Yamana Gold hold 37.5% and 12.5% respectively. People have raised concerns over the mine's potential environmental impacts, including water pollution, deforestation, and the displacement of indigenous communities. The mine's operators have also faced accusations of human rights violations, including the use of excessive force against protesters and the violation of workers' rights. Despite these concerns, the mine continues to operate, and its expansion plans have been met with significant resistance from local communities and environmental groups. After La Alumbrera started operations, other mining projects were rejected in Catamarca.

    Brazil

    Environmental justice movements arising from local conflicts in Brazil include

    • Belo Monte Hydroelectric Dam, Para, Brasil: Belo Monte is a hydroelectric project on the Xingú River in Brazil that began construction in 2011 and was completed in 2019. It is currently the fifth-largest hydroelectric dam in the world, by installed capacity. It is owned by a consortium called Norte Energia, mostly owned by the government and funded primarily by BNDES, with mining giant Vale owning around 5% of it. The project is the largest infrastructure complex of the Brazilian government's plan to build over 60 large dams in the Amazon Basin over the next 20 years, which has received numerous criticisms and open resistance from organizations, public opinion, and inhabitants of the region. Its construction has been highly conflictive, having been opposed by indigenous peoples, who were not consulted before the authorization of construction. The project has been criticized for lacking environmental impact assessments prior to the start of the works. The Belo Monte Dam has diverted the flow of the Xingu, devastating an extensive area of the rainforest, affecting over 50,000 people and displacing over 20,000. The dam threatens the survival of indigenous tribes that depend on the river.

    Ecuador

    Notable environmental justice movements in Ecuador have arisen from several local conflicts:

    Peru

    Notable environmental justice conflicts in Peru include

    Transnational movement networks

    Many of the Environmental Justice Networks that began in the United States expanded their horizons to include many other countries and became Transnational Networks for Environmental Justice. These networks work to bring Environmental Justice to all parts of the world and protect all citizens of the world to reduce the environmental injustice happening all over the world. Listed below are some of the major Transnational Social Movement Organizations.

    • Amazon Watch - organization that campaigns for the protection of the rainforest, and the rights of Indigenous peoples in the Amazon Basin in Ecuador, Peru, Colombia, and Brazil.
    • Basel Action Network – works to end toxic waste dumping in poor undeveloped countries from the rich developed countries.
    • a network of activist-researchers that document environmental justice issues around the world.
    • Environmental Justice Organisations, Liabilities and Trade (EJOLT) is a multinational project supported by the European Commission. Civil society organizations and universities from 20 countries in Europe, Africa, Latin-America, and Asia are building up case studies, linking organizations worldwide, and making an interactive global map of Environmental Justice.
    • GAIA (Global Anti-Incinerator Alliance) – works to find different ways to dispose of waste other than incineration. This company has people working in over 77 countries throughout the world.
    • GR (Global Response) – works to educate activists and the upper working class how to protect human rights and the ecosystem.
    • Global Witness - an international NGO that investigates and exposes environmental and human rights abuses, corruption, and conflict associated with the exploitation of natural resources.
    • Greenpeace International – which was the first organization to become the global name of Environmental Justice. Greenpeace works to raise the global consciousness of transnational trade of toxic waste.
    • Health Care without Harm – works to improve public health by reducing the environmental impacts of the health care industry.
    • Indigenous Environmental Network - a North American network of indigenous peoples' organizations that work to protect the environment and promote sustainable development.
    • International Campaign for Responsible Technology – works to promote corporate and government accountability with electronics and how the disposal of technology affect the environment.
    • International POPs Elimination Network – works to reduce and eventually end the use of persistent organic pollutants (POPs) which are harmful to the environment.
    • NDN Collective - is an Indigenous-led organization dedicated to building Indigenous, supporting campaigns like ‘Land Back’, which aims to return Indigenous lands back to Indigenous people.
    • PAN (Pesticide Action Network) – works to replace the use of hazardous pesticides with alternatives that are safe for the environment.
    • Red Latinoamericana de Mujeres Defensoras de Derechos Ambientales - a regional network that works to promote the rights of women environmental defenders and protect the environment in Latin America.

    Global Environmental Activism and Policy

    Global environmental inequality is evidence that vulnerable populations are disproportionately victimized by environmental degradation as a result of global capitalism and land exploitation. Yet, studies prove these groups have pioneered the need for intersection between human and environmental rights in activism and policy because of their close proximity to environmental issues. It is important for environmental regulation to acknowledge the value of this global grassroots movement, lead by indigenous women and women of the global south, in determining how institutions such as the United Nations can best deliver environmental justice. In recent years, the United Nations' approach to issues concerning environmental health has begun to acknowledge the native practices of indigenous women and advocacy of women in vulnerable positions. Further research by the science community and analysis of environmental issues through a gendered lens are essential next steps for the UN and other governing bodies to curate policy that meets the needs of the women activists leading the environmental justice movement.

    Outer space

    Over recent years social scientists have begun to view outer space in an environmental conceptual framework. Klinger, an environmental geographer, analyses the environmental features of outer space from the perspective of several schools of geopolitical. From a classical geopolitical approach, for instance, people's exploration of the outer space domain is, in fact, a manifestation of competing and conflicting interests between states, i.e., outer space is an asset used to strengthen and consolidate geopolitical power and has strategic value. From the perspective of environmental geopolitics, the issue of sustainable development has become a consensus politics. Countries thus cede power to international agreements and supranational organizations to manage global environmental issues. Such co-produced practices are followed in the human use of outer space, which means that only powerful nations are capable of reacting to protect the interests of underprivileged countries, so far from there being perfect environmental justice in environmental geopolitics.

    Human interaction with outer space is environmentally based since a measurable environmental footprint will be left when modifying the Earth's environment (e.g., local environmental changes from launch sites) to access outer space, developing space-based technologies to study the Earth's environment, exploring space with spacecraft in orbit or by landing on the Moon, etc. Different stakeholders have competing territorial agendas for this vast space; thus, the ownership of these footprints is governed by geopolitical power and relations, which means that human involvement with outer space falls into the field of environmental justice.

    Activities on Earth

    On Earth, the environmental geopolitics of outer space is directly linked to issues of environmental justice - the launch of spacecraft and the impact of their launch processes on the surrounding environment, and the impact of space-based related technologies and facilities on the development process of human society. As both processes require the support of industry, infrastructure, and networks of information and take place in specific locations, this leads to continuous interaction with local territorial governance.

    Launches and infrastructures

    Rockets are generally launched in areas where conventional and potentially catastrophic blast damage can be controlled, generally in an open and unoccupied territory. Despite the absence of human life and habitation, other forms of life exist in these open territories, maintaining the local ecological balance and material cycles. Toxic particulate matter from rocket launches can cause localized acid rain, plant and animal mortality, reduced food production, and other hazards.

    Moreover, space activities result in environmental injustice on a global scale. Spacecraft are the only contributors to direct human-derived pollution in the stratosphere, which comes mostly from the launch activities of rich economies in the northern hemisphere, while the global north bears more of the environmental consequences.

    Environmental injustice is further evidenced by the limited research into the effects on downstream human and non-human communities and the inadequate tracking of pollutants in ecological chains and environments.

    Space-based technologies

    While space-based technologies have been applied to tracking natural disasters and the spread of pollutants, access to these technologies and the monitoring of data is deeply uneven within and between countries, exacerbating environmental injustice. Further, the use of technology by powerful countries can even lead to the creation of policies and institutions in less privileged nations, changing land-use regimes to favor or disadvantage the survival of certain human groups. For example, in the decades following the publication of the first report on the use of satellite imagery to measure rainforest deforestation in the 1980s, several environmental groups rose to prominence and also influenced changes in domestic policy in Brazil.

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