Citizen science (CS; also known as community science, crowd science, crowd-sourced science, civic science, volunteer monitoring, or online citizen science) is scientific research conducted, in whole or in part, by amateur (or nonprofessional) scientists. Citizen science is sometimes described as "public participation in scientific research," participatory monitoring, and participatory action research whose outcomes are often advancements in scientific research, as well as an increase in the public's understanding of science. Based on Alexa rankings iNaturalist is currently the most popular citizen science website followed by eBird and then Zooniverse in second and third place respectively.
Definition
The term CS has multiple origins, as well as differing concepts. It was first defined independently in the mid-1990s by Rick Bonney in the United States and Alan Irwin in the United Kingdom.
Alan Irwin, a British sociologist, defines CS as "developing concepts
of scientific citizenship which foregrounds the necessity of opening up
science and science policy processes to the public".
Irwin sought to reclaim two dimensions of the relationship between
citizens and science: 1) that science should be responsive to citizens'
concerns and needs; and 2) that citizens themselves could produce
reliable scientific knowledge.
The American ornithologist Rick Bonney, unaware of Irwin's work,
defined CS as projects in which nonscientists, such as amateur
birdwatchers, voluntarily contributed scientific data. This describes a
more limited role for citizens in scientific research than Irwin's
conception of the term.
The terms citizen science and citizen scientists entered the Oxford English Dictionary (OED) in June 2014.
"Citizen science" is defined as "scientific work undertaken by members
of the general public, often in collaboration with or under the
direction of professional scientists and scientific institutions".
"Citizen scientist" is defined as: (a) "a scientist whose work is
characterized by a sense of responsibility to serve the best interests
of the wider community (now rare)"; or (b) "a member of the general
public who engages in scientific work, often in collaboration with or
under the direction of professional scientists and scientific
institutions; an amateur scientist". The first use of the term "citizen scientist" can be found in the magazine New Scientist in an article about ufology from October 1979.
Muki Haklay cites, from a policy report for the Wilson Center
entitled "Citizen Science and Policy: A European Perspective", an
alternate first use of the term "citizen science" by R. Kerson in the
magazine MIT Technology Review from January 1989.
Quoting from the Wilson Center report: "The new form of engagement in
science received the name 'citizen science'. The first recorded example
of the use of the term is from 1989, describing how 225 volunteers
across the US collected rain samples to assist the Audubon Society in an acid-rain awareness raising campaign."
A "Green Paper on Citizen Science" was published in 2013 by the European Commission's
Digital Science Unit and Socientize.eu, which included a definition for
CS, referring to "the general public engagement in scientific research
activities when citizens actively contribute to science either with
their intellectual effort or surrounding knowledge or with their tools
and resources. Participants provide experimental data and facilities for
researchers, raise new questions and co-create a new scientific
culture."
Citizen science may be performed by individuals, teams, or
networks of volunteers. Citizen scientists often partner with
professional scientists to achieve common goals. Large volunteer
networks often allow scientists to accomplish tasks that would be too
expensive or time consuming to accomplish through other means.
Many citizen-science projects serve education and outreach goals. These projects may be designed for a formal classroom environment or an informal education environment such as museums.
Citizen science has evolved over the past four decades. Recent
projects place more emphasis on scientifically sound practices and
measurable goals for public education.
Modern citizen science differs from its historical forms primarily in
the access for, and subsequent scale of, public participation;
technology is credited as one of the main drivers of the recent
explosion of citizen science activity.
In March 2015, the Office of Science and Technology Policy published a factsheet entitled "Empowering Students and Others through Citizen Science and Crowdsourcing".
Quoting: "Citizen science and crowdsourcing projects are powerful tools
for providing students with skills needed to excel in science,
technology, engineering, and math (STEM). Volunteers in citizen science,
for example, gain hands-on experience doing real science, and in many
cases take that learning outside of the traditional classroom setting".
In May 2016, a new open-access journal was started by the Citizen Science Association along with Ubiquity Press called Citizen Science: Theory and Practice (CS:T&P).
Quoting from the editorial article titled "The Theory and Practice of
Citizen Science: Launching a New Journal", "CS:T&P provides the
space to enhance the quality and impact of citizen science efforts by
deeply exploring the citizen science concept in all its forms and across
disciplines. By examining, critiquing, and sharing findings across a
variety of citizen science endeavors, we can dig into the underpinnings
and assumptions of citizen science and critically analyze its practice
and outcomes."
Alternative definitions
Other definitions for citizen science have also been proposed. For example, Bruce Lewenstein of Cornell University's Communication and S&TS departments describes 3 possible definitions:
- The participation of nonscientists in the process of gathering data according to specific scientific protocols and in the process of using and interpreting that data.
- The engagement of nonscientists in true decision-making about policy issues that have technical or scientific components.
- The engagement of research scientists in the democratic and policy process.
Scientists and scholars who have used other definitions include Frank N. von Hippel, Stephen Schneider, Neal Lane and Jon Beckwith. Other alternative terminologies proposed are "civic science" and "civic scientist".
Further, Muki Haklay offers an overview of the typologies of the
level of citizen participation in citizen science, which range from
"crowdsourcing" (level 1), where the citizen acts as a sensor, to
"distributed intelligence" (level 2), where the citizen acts as a basic
interpreter, to "participatory science", where citizens contribute to
problem definition and data collection (level 3), to "extreme citizen
science", which involves collaboration between the citizen and
scientists in problem definition, collection and data analysis.
A 2014 Mashable
article defines a citizen scientist as: "Anybody who voluntarily
contributes his or her time and resources toward scientific research in
partnership with professional scientists."
In 2016 the Australian Citizen Science Association
released their definition which states "Citizen science involves public
participation and collaboration in scientific research with the aim to
increase scientific knowledge."
In 2016, the book "Analyzing the Role of Citizen Science in
Modern Research" defined citizen science as "work undertaken by civic
educators together with citizen communities to advance science, foster a
broad scientific mentality, and/or encourage democratic engagement,
which allows society to deal rationally with complex modern problems".
Related fields
In a Smart City era, Citizen Science relays on various web-based tools (eg.WebGIS) and becomes Cyber Citizen Science. Some projects, such as SETI@home, use the Internet to take advantage of distributed computing.
These projects are generally passive. Computation tasks are performed
by volunteers' computers and require little involvement beyond initial
setup. There is disagreement as to whether these projects should be
classified as citizen science.
The astrophysicist and Galaxy Zoo co-founder Kevin Schawinski
stated: "We prefer to call this [Galaxy Zoo] citizen science because
it's a better description of what you're doing; you're a regular citizen
but you're doing science. Crowd sourcing sounds a bit like, well,
you're just a member of the crowd and you're not; you're our
collaborator. You're pro-actively involved in the process of science by
participating."
Compared to SETI@home, "Galaxy Zoo volunteers do real work.
They're not just passively running something on their computer and
hoping that they'll be the first person to find aliens. They have a
stake in science that comes out of it, which means that they are now
interested in what we do with it, and what we find."
Citizen policy may be another result of citizen science
initiatives. Bethany Brookshire (pen name SciCurious) writes: "If
citizens are going to live with the benefits or potential consequences
of science (as the vast majority of them will), it's incredibly
important to make sure that they are not only well informed about
changes and advances in science and technology, but that they also ...
are able to ... influence the science policy decisions that could impact
their lives."
Benefits and limitations
Citizen
involvement in scientific projects has become a means of encouraging
curiosity and greater understanding of science whilst providing an
unprecedented engagement between professional scientists and the general
public. In a research report published by the National Park Service
in 2008, Brett Amy Thelen and Rachel K. Thiet mention the following
concerns, previously reported in the literature, about the validity of
volunteer-generated data:
- Some projects may not be suitable for volunteers, for instance, when they use complex research methods or require a lot of (often repetitive) work.
- If volunteers lack proper training in research and monitoring protocols, they are at risk of introducing bias into the data.
The question of data accuracy, in particular, remains open. John Losey, who created the Lost Ladybug
citizen science project, has argued that the cost-effectiveness of
citizen science data can outweigh data quality issues, if properly
managed.
In December 2016, authors M. Kosmala, A. Wiggins, A. Swanson and B. Simmons published a study in the journal Frontiers in Ecology and the Environment called "Assessing Data Quality in Citizen Science".
The abstract describes how ecological and environmental CS projects
have enormous potential to advance science. Also, CS projects can
influence policy and guide resource management by producing datasets that are otherwise infeasible to generate. In the section "In a Nutshell" (pg3), four condensed conclusions are stated. They are:
- Datasets produced by volunteer CSs can have reliably high quality, on par with those produced by professionals.
- Individual volunteer accuracy varies, depending on task difficulty and volunteer experience. Multiple methods exist for boosting accuracy to required levels for a given project.
- Most types of bias found in CS datasets are also found in professionally produced datasets and can be accommodated using existing statistical tools.
- Reviewers of CS projects should look for iterated project design, standardization and appropriateness of volunteer protocols and data analyses, capture of metadata, and accuracy assessment.
They conclude that as CS continues to grow and mature, a key metric
of project success they expect to see will be a growing awareness of
data quality. They also conclude that CS will emerge as a general tool
helping "to collect otherwise unobtainable high-quality data in support
of policy and resource management, conservation monitoring, and basic
science."
A study of Canadian lepidoptera datasets published in 2018
compared the use of a professionally curated dataset of butterfly
specimen records with four years of data from a CS program, eButterfly.
The eButterfly dataset was used as it was determined to be of high
quality because of the expert vetting process used on the site, and
there existed a historic dataset covering the same geographic area
consisting of specimen data, much of it institutional. The authors note
that, in this case, CS data provides both novel and complementary
information to the specimen data. Five new species were reported from
the CS data, and geographic distribution information was improved for
over 80% of species in the combined dataset when CS data was included.
Law
In March 2015, the state of Wyoming
passed new laws (Senate Files 12 and 80) clarifying that trespassing
laws applied even if the trespasser's intention was to gather data to
further a U.S. government science program. This hampered some CS researchers who were collecting data while on other people's land.
Ethics
Various studies have been published that explore the ethics of CS, including issues such as intellectual property and project design.(e.g.) The Citizen Science Association (CSA), based at the Cornell Lab of Ornithology, and the European Citizen Science Association (ECSA), based in the Museum für Naturkunde in Berlin, have working groups on ethics and principles.
In September 2015, the European Citizen Science Association (ECSA) published its Ten Principles of Citizen Science, which have been developed by the "Sharing best practice and building capacity" working group of the ECSA, led by the Natural History Museum, London with input from many members of the association.
- Citizen science projects actively involve citizens in scientific endeavour that generates new knowledge or understanding. Citizens may act as contributors, collaborators, or as project leader and have a meaningful role in the project.
- Citizen science projects have a genuine science outcome. For example, answering a research question or informing conservation action, management decisions or environmental policy.
- Both the professional scientists and the citizen scientists benefit from taking part. Benefits may include the publication of research outputs, learning opportunities, personal enjoyment, social benefits, satisfaction through contributing to scientific evidence e.g. to address local, national and international issues, and through that, the potential to influence policy.
- Citizen scientists may, if they wish, participate in multiple stages of the scientific process. This may include developing the research question, designing the method, gathering and analysing data, and communicating the results.
- Citizen scientists receive feedback from the project. For example, how their data are being used and what the research, policy or societal outcomes are.
- Citizen science is considered a research approach like any other, with limitations and biases that should be considered and controlled for. However unlike traditional research approaches, citizen science provides opportunity for greater public engagement and democratisation of science.
- Citizen science project data and meta-data are made publicly available and where possible, results are published in an open access format. Data sharing may occur during or after the project, unless there are security or privacy concerns that prevent this.
- Citizen scientists are acknowledged in project results and publications.
- Citizen science programmes are evaluated for their scientific output, data quality, participant experience and wider societal or policy impact.
- The leaders of citizen science projects take into consideration legal and ethical issues surrounding copyright, intellectual property, data sharing agreements, confidentiality, attribution, and the environmental impact of any activities.
The medical ethics of internet crowdsourcing has been questioned by Graber & Graber in the Journal of Medical Ethics. In particular, they analyse the effect of games and the crowdsourcing project Foldit. They conclude: "games can have possible adverse effects, and that they manipulate the user into participation".
In March 2019 the online journal Citizen Science: Theory and Practice launched a collection of articles
on the theme of Ethical Issues in Citizen Science.
The articles are introduced with (quoting): "Citizen science can
challenge existing ethical norms because it falls outside of customary
methods of ensuring that research is conducted ethically. What ethical
issues arise when engaging the public in research? How have these issues
been addressed, and how should they be addressed in the future?"
In June 2019, East Asian Science, Technology and Society: An International Journal
(EASTS) published an issue titled "Citizen Science: Practices and
Problems" which contains 15 articles/studies on CS, including many
relevant subjects of which ethics is one.
Quoting from the introduction Citizen, Science, and Citizen Science:
"The term citizen science has become very popular among scholars as well
as the general public, and, given its growing presence in East Asia, it
is perhaps not a moment too soon to have a special issue of EASTS on
the topic."
Economic worth
In the research paper "Can citizen science enhance public understanding of science?" by Bonney et al. 2016, statistics which analyse the economic worth of citizen science are used, drawn from two papers: i)Sauermann and Franzoni 2015, and
ii)Theobald et al. 2015.
In "Crowd science user contribution patterns and their implications" by
Sauermann and Franzoni (2015), seven projects from the Zooniverse web
portal are used to estimate the monetary value of the CS that had taken
place. The 7 projects are: Solar Stormwatch, Galaxy Zoo Supernovae,
Galaxy Zoo Hubble, Moon Zoo, Old Weather, The Milky Way Project and
Planet Hunters. Using data from 180 days in 2010, they find a total of 100,386 users participated, contributing 129,540 hours of unpaid work.
Estimating at a rate of $12 an hour (an undergraduate research
assistant's basic wage), the total contributions amount to $1,554,474,
an average of $222,068 per project. The range over the 7 projects was from $22,717 to $654,130.
In "Global change and local solutions: Tapping the unrealized
potential of citizen science for biodiversity research" by Theobald et
al. 2015, the authors surveyed 388 unique biodiversity-based projects.
Quoting: "We estimate that between 1.36 million and 2.28 million people
volunteer annually in the 388 projects we surveyed, though variation is
great" and that "the range of in-kind contribution of the volunteerism
in our 388 citizen science projects as between $667 million to $2.5
billion annually."
Worldwide participation in citizen science continues to grow. A list of the top five citizen science communities compiled by Marc Kuchner
and Kristen Erickson in July 2018 shows a total of 3.75 million
participants, although there is likely substantial overlap between the
communities.
Education
There have been studies published which examine the place of CS within education. Teaching aids can include books and activity or lesson plans. Some examples of studies are:
From the Second International Handbook of Science Education, a
chapter entitled: "Citizen Science, Ecojustice, and Science Education:
Rethinking an Education from Nowhere" by Mueller and Tippins (2011),
acknowledges in the abstract that: "There is an emerging emphasis in
science education on engaging youth in citizen science." The authors
also ask: "whether citizen science goes further with respect to citizen
development."
The abstract ends by stating that the "chapter takes account of the
ways educators will collaborate with members of the community to
effectively guide decisions, which offers promise for sharing a
responsibility for democratizing science with others."
From the journal Democracy and Education, an article entitled:
"Lessons Learned from Citizen Science in the Classroom" by authors Gray,
Nicosia and Jordan (GNJ) (2012) give a response to a study by Mueller,
Tippins and Bryan (MTB) called "The Future of Citizen Science".
GNJ begins by stating in the abstract that the study The Future of
Citizen Science: "provides an important theoretical perspective about
the future of
democratized science and K12
education." But GRB state: "However, the authors (MTB) fail to
adequately address the existing
barriers and constraints to moving community-based science into the
classroom." They end the abstract by arguing: "that the resource
constraints of scientists, teachers, and students likely pose problems
to moving true democratized science into the classroom."
In 2014, a study was published called "Citizen Science and Lifelong Learning" by R. Edwards in the journal Studies in the Education of Adults.
Edwards begins by writing in the abstract that CS projects have
expanded over recent years and engaged CSs and professionals in diverse
ways. He continues: "Yet there has been little educational exploration
of such projects to date."
He describes that "there has been limited exploration of the
educational backgrounds of adult contributors to citizen science".
Edwards explains that CS contributors are referred to as volunteers,
citizens or as amateurs. He ends the abstract: "The article will explore
the nature and significance of these different characterisations and
also suggest possibilities for further research."
In the journal Microbiology and Biology Education a study was published by Shah and Martinez (2015) called "Current Approaches in Implementing Citizen Science in the Classroom".[73]
They begin by writing in the abstract that CS is a partnership between
inexperienced amateurs and trained scientists. The authors continue:
"With recent studies showing a weakening in scientific competency of
American students, incorporating citizen science initiatives in the
curriculum provides a means to address deficiencies".
They argue that combining traditional and innovative methods can help
provide a practical experience of science. The abstract ends: "Citizen
science can be used to emphasize the recognition and use of systematic
approaches to solve problems affecting the community."
In November 2017, authors Mitchell, Triska and Liberatore published a study in PLOS ONE titled "Benefits and Challenges of Incorporating Citizen Science into University Education".
The authors begin by stating in the abstract that CSs contribute data
with the expectation that it will be used. It reports that CS has been
used for first year university students as a means to experience
research. They continue: "Surveys of more than 1500 students showed that
their environmental engagement increased significantly after
participating in data collection and data analysis."
However, only a third of students agreed that data collected by CSs was
reliable. A positive outcome of this was that the students were more
careful of their own research. The abstract ends: "If true for citizen
scientists in general, enabling participants as well as scientists to
analyse data could enhance data quality, and so address a key constraint
of broad-scale citizen science programs."
History
"Citizen science" is a fairly new term but an old practice. Prior to the 20th century, science was often the pursuit of gentleman scientists, amateur or self-funded researchers such as Sir Isaac Newton, Benjamin Franklin, and Charles Darwin.
By the mid-20th century, however, science was dominated by researchers
employed by universities and government research laboratories. By the
1970s, this transformation was being called into question. Philosopher Paul Feyerabend called for a "democratization of science". Biochemist Erwin Chargaff advocated a return to science by nature-loving amateurs in the tradition of Descartes, Newton, Leibniz, Buffon, and Darwin—science dominated by "amateurship instead of money-biased technical bureaucrats".
A study from 2016 indicates that the largest impact of citizen
science is in research on biology, conservation and ecology, and is
utilized mainly as a methodology of collecting and classifying data.
Amateur astronomy
Astronomy has long been a field where amateurs have contributed throughout time, all the way up to the present day.
Collectively, amateur astronomers observe a variety of celestial objects and phenomena sometimes with equipment that they build themselves. Common targets of amateur astronomers include the Moon, planets, stars, comets, meteor showers, and a variety of deep-sky objects such as star clusters, galaxies, and nebulae. Observations of comets and stars are also used to measure the local level of artificial skyglow. One branch of amateur astronomy, amateur astrophotography,
involves the taking of photos of the night sky. Many amateurs like to
specialize in the observation of particular objects, types of objects,
or types of events that interest them.
The American Association of Variable Star Observers
has gathered data on variable stars for educational and professional
analysis since 1911 and promotes participation beyond its membership on
its Citizen Sky website.
Butterfly counts
Butterfly counts have a long tradition of involving individuals in
the study of butterflies' range and their relative abundance. Two
long-running programs are the UK Butterfly Monitoring Scheme (started in
1976) and the North American Butterfly Association's Butterfly Count Program (started in 1975).
There are various protocols for monitoring butterflies and different
organizations support one or more of transects, counts and/or
opportunistic sightings. eButterfly
is an example of a program designed to capture any of the three types
of counts for observers in North America. Species-specific programs
also exist, with monarchs the prominent example. Two examples of this involve the counting of monarch butterflies during the fall migration
to overwintering sites in Mexico: Monarch Watch is a continent-wide
project, while (2) the Cape May Monarch Monitoring Project is an
example of a local project. The Austrian project Viel-Falter
investigated if and how trained and supervised pupils are able to
systematically collect data about the occurrence of diurnal butterflies,
and how this data could contribute to a permanent butterfly monitoring
system. Despite substantial identification uncertainties for some
species or species groups, the data collected by pupils was successfully
used to predict the general habitat quality for butterflies.
Ornithology
Citizen science projects have become increasingly focused on providing benefits to scientific research. The North American Bird Phenology Program
(historically called the Bird Migration and Distribution records) may
have been the earliest collective effort of citizens collecting
ornithological information in the U.S.
The program, dating back to 1883, was started by Wells Woodbridge
Cooke. Cooke established a network of observers around North America to
collect bird migration records. The Audubon Society's Christmas Bird Count,
which began in 1900, is another example of a long-standing tradition of
citizen science which has persisted to the present day. Citizen
scientists help gather data that will be analyzed by professional
researchers, and can be used to produce bird population and biodiversity
indicators.
Raptor migration research relies on the data collected by the hawkwatching
community. This mostly volunteer group counts migrating accipiters,
buteos, falcons, harriers, kites, eagles, osprey, vultures and other
raptors at hawk sites throughout North America during the spring and
fall seasons. The daily data is uploaded to hawkcount.org where it can be viewed by professional scientists and the public.
Such indices can be useful tools to inform management, resource allocation, policy and planning. For example, European breeding bird survey data provide input for the Farmland Bird Index, adopted by the European Union as a structural indicator of sustainable development. This provides a cost-effective alternative to government monitoring.
Similarly, data collected by citizen scientists as part of
BirdLife Australia's has been analysed to produce the first-ever
Australian Terrestrial Bird Indices.
Citizen oceanography
The concept of citizen science has been extended to the ocean environment for characterizing ocean dynamics and tracking marine debris. For example, the mobile app Marine Debris Tracker is a joint partnership of National Oceanic and Atmospheric Administration and the University of Georgia. Long term sampling efforts such as the continuous plankton recorder
has been fitted on ships of opportunity since 1931. Plankton collection
by sailors and subsequent genetic analysis was pioneered in 2013 by
Indigo V Expeditions as a way to better understand marine microbial
structure and function.
Coral reefs
Citizen science in Coral reef studies developed in the 21st century.
Underwater photography
has become more popular since the early 2000s, resulting on millions of
pictures posted every year on various websites and social media. This
mass of documentation has great scientific potential, as millions of
tourists possess a much superior coverage power than professional
scientists, who cannot spend so much time in the field.
As a consequence, several participative sciences programs have been developed, supported by geotagging and identification web sites (such as iNaturalist.org). The Monitoring through many eyes project collates thousands of underwater images of the Great Barrier Reef and provides an interface for elicitation of reef health indicators.
The National Oceanic and Atmospheric Administration (NOAA) also offers opportunities for volunteer participation. By taking measurements in The United States' National Marine Sanctuaries, citizens contribute data to marine biology projects. In 2016, NOAA benefited from 137,000 hours of research.
There also exist protocols for auto-organization and
self-teaching aimed at biodiversity-interested snorkelers, in order for
them to turn their observations into sound scientific data, available
for research. This kind of approach has been successfully used in Réunion island, allowing for tens of new records and even new species.
Agriculture
Farmer participation in experiments has a long tradition in Agricultural science. There are many opportunities for citizen engagement in different parts of food systems. Citizen science is actively used for crop variety selection for climate adaptation, involving thousands of farmers.
Art history
Citizen science has a long tradition in Natural science. But nowadays, citizen science projects can also be found in various fields of science like Art history. For example, the Zooniverse
project AnnoTate is a transcription tool developed to enable volunteers
to read and transcribe the personal papers of British-born and émigré
artists. The papers are drawn from the Tate Archive. Another example of citizen science in art history is ARTigo. ARTigo collects semantic
data on artworks from the footprints left by players of games featuring
artwork images. From these footprints, ARTigo automatically builds a semantic search engine for artworks.
Modern technology
Newer technologies have increased the options for citizen science.
Citizen scientists can build and operate their own instruments to
gather data for their own experiments or as part of a larger project.
Examples include amateur radio, amateur astronomy, Six Sigma Projects, and Maker activities. Scientist Joshua Pearce has advocated for the creation of open-source hardware based scientific equipment that both citizen scientists and professional scientists, which can be replicated by digital manufacturing techniques such as 3D printing. Multiple studies have shown this approach radically reduces scientific equipment costs. Examples of this approach include water testing, nitrate and other environmental testing, basic biology and optics. Groups such as Public Lab, which is a community where citizen scientists can learn how to investigate environmental concerns using inexpensive DIY techniques, embody this approach.
Video technology is much used in scientific research. The Citizen Science Center in the Nature Research Center wing of the North Carolina Museum of Natural Sciences
has exhibits on how to get involved in scientific research and become a
citizen scientist. For example, visitors can observe birdfeeders at
the Prairie Ridge Ecostation satellite facility via live video feed and record which species they see.
Since 2005, the Genographic Project
has used the latest genetic technology to expand our knowledge of the
human story, and its pioneering use of DNA testing to engage and involve
the public in the research effort has helped to create a new breed of
"citizen scientist". Geno 2.0 expands the scope for citizen science,
harnessing the power of the crowd to discover new details of human population history. This includes supporting, organization and dissemination of personal DNA (genetic) testing. Like Amateur astronomy, citizen scientists encouraged by volunteer organizations like the International Society of Genetic Genealogy have provided valuable information and research to the professional scientific community.
With unmanned aerial vehicles, further citizen science is enabled. One example is the ESA's AstroDrone smartphone app for gathering robotic data with the Parrot AR.Drone.
Citizens in Space (CIS), a project of the United States Rocket
Academy, seeks to combine citizen science with citizen space
exploration.
CIS is training citizen astronauts to fly as payload operators on
suborbital reusable spacecraft that are now in development. CIS will
also be developing, and encouraging others to develop, citizen-science
payloads to fly on suborbital vehicles. CIS has already acquired a
contract for 10 flights on the Lynx suborbital vehicle, being developed
by XCOR Aerospace, and plans to acquire additional flights on XCOR Lynx and other suborbital vehicles in the future.
CIS believes that "The development of low-cost reusable
suborbital spacecraft will be the next great enabler, allowing citizens
to participate in space exploration and space science."
Internet
The Internet has been a boon to citizen science, particularly through gamification. One of the first Internet-based citizen science experiments was NASA's Clickworkers,
which enabled the general public to assist in the classification of
images, greatly reducing the time to analyze large data sets. Another
was the Citizen Science Toolbox, launched in 2003, of the Australian
Coastal Collaborative Research Centre.
Mozak is a game in which players create 3D reconstructions from images
of actual human and mouse neurons, helping to advance understanding of
the brain. One of the largest citizen science games is Eyewire, a brain-mapping puzzle game developed at the Massachusetts Institute of Technology that now has over 200,000 players. Another example is Quantum Moves, a game developed by the Center for Driven Community Research at Aarhus University, which uses online community efforts to solve quantum physics problems. The solutions found by players can then be used in the lab to feed computational algorithms used in building a scalable quantum computer.
More generally, Amazon's Mechanical Turk is frequently used in the creation, collection, and processing of data by paid citizens.
There is controversy as to whether or not the data collected through
such services is reliable, as it is subject to participants' desire for
compensation. However, use of Mechanical Turk
tends to quickly produce more diverse participant backgrounds, as well
as comparably accurate data when compared to traditional collection
methods.
The internet has also enabled citizen scientists to gather data
to be analyzed by professional researchers. Citizen science networks
are often involved in the observation of cyclic events of nature (phenology), such as effects of global warming on plant and animal life in different geographic areas, and in monitoring programs for natural-resource management. On BugGuide.Net, an online community of naturalists who share observations of arthropod,
amateurs and professional researchers contribute to the analysis. By
October 2014, BugGuide has over 808,718 images submitted by more than
27,846 contributors.
Not counting iNaturalist and eBird, the Zooniverse is home to the internet's largest, most popular and most successful citizen science projects.
The Zooniverse and the suite of projects it contains is produced,
maintained and developed by the Citizen Science Alliance (CSA).
The member institutions of the CSA work with many academic and other
partners around the world to produce projects that use the efforts and
ability of volunteers to help scientists and researchers deal with the
flood of data that confronts them. On 29 June 2015, the Zooniverse
released a new software version with a project-building tool allowing
any registered user to create a project.
Project owners may optionally complete an approval process to have
their projects listed on the Zooniverse site and promoted to the
Zooniverse community. A NASA/JPL picture to the right gives an example from one of Zooniverse's projects The Milky Way Project.
The website CosmoQuest
has as its goal "To create a community of people bent on together
advancing our understanding of the universe; a community of people who
are participating in doing science, who can explain why what they do
matters, and what questions they are helping to answer.
CrowdCrafting enables its participants to create and run projects
where volunteers help with image classification, transcription,
geocoding and more. The platform is powered by PyBossa software, a free and open-source framework for crowdsourcing.
Project Soothe is a citizen science research project based at the
University of Edinburgh. The aim of this research is to create a bank
of soothing images, submitted by members of the public, which can be
used to help others through psychotherapy and research in the future.
Since 2015, Project Soothe has received over 600 soothing photographs
from people in 23 countries. Anyone aged 12 years or over are eligible
to participate in this research in two ways: (1) By submitting soothing
photos that they have taken with a description of why the images make
them feel soothed (2) By rating the photos that have been submitted by
people worldwide for their soothability.
Smartphone
The bandwidth and ubiquity afforded by smartphones has vastly expanded the opportunities for citizen science. Examples include iNaturalist, the San Francisco project, the WildLab, Project Noah, and Aurorasurus. Due to their ubiquity, for example, Twitter, Facebook, and smartphones
have been useful for citizen scientists, having enabled them to
discover and propagate a new type of aurora dubbed "STEVE" in 2016.
There are also apps for monitoring birds, marine wildlife and other organisms, and the "Loss of the Night".
An Android
app Sapelli is a mobile data-collection and -sharing platform designed
with a particular focus on non-literate and illiterate users. The SPOTTERON app creates synergy effects for projects by sharing a common feature set.
"The Crowd and the Cloud" is a four-part series broadcast during April 2017, which examines citizen science.
It shows how smartphones, computers and mobile technology enable
regular citizens to become part of a 21st-century way of doing science.
The programs also demonstrate how CSs help professional scientists to
advance knowledge, which helps speed up new discoveries and innovations.
The Crowd & The Cloud is based upon work supported by the National Science Foundation.
Seismology
Since 1975, in order to improve earthquake detection and collect useful information, the European-Mediterranean Seismological Centre monitors the visits of earthquake eyewitnesses to its website and relies on Facebook and Twitter.
Hydrology
Citizen science has been used to provide valuable data in hydrology (catchment science), notably flood risk, water quality and water resource management.
A growth in internet use and smartphone ownership has allowed users to
collect and share real-time flood-risk information using, for example,
social media and web-based forms. Although traditional data collection
methods are well-established, citizen science is being used to fill the
data gaps on a local level, and is therefore meaningful to individual
communities. It has been demonstrated that citizen science is
particularly advantageous during a flash flood because the public are more likely to witness these rarer hydrological events than scientists.
Plastics and pollution
Citizen science includes projects that help monitor plastics and their associated pollution. These include The Ocean Cleanup, #OneLess, The Big Microplastic Survey, EXXpedition and Alliance to End Plastic Waste. Ellipsis seeks to map the distribution of litter using aerial data mapping by unmanned aerial vehicles and machine learning software. A Zooniverse project called The Plastic Tide (now finished) helped train an algorithm used by Ellipsis.
Projects that use apps include:
- The European Environment Agency launched an initiative called "Marine Litter Watch" in June 2018. This uses mobile phones to: (quote) "help individuals and communities come together to clean up Europe’s beaches."
- PlasticPatrol seeks to log and record plastic pollution: (quote) "The Plastic Patrol app is a real world tool that combines citizen science and scientific analysis to help us gather crucial insight into plastic pollution."
- Litterati's mission is to eradicate litter: (quote) "When millions of people come together, the impossible becomes reality, and change happens."
- Anecdata helps anyone and any organisation to create a project: (quote) "Anecdata helps individuals and organizations collect, manage, and share their citizen science data, providing both web-based and mobile solutions for gathering and accessing observations."
- In the UK #2minutebeachclean seeks to purge plastics in coastal environments. They offer an app and a beachclean board, which can be displayed on beaches: (quote) "We believe that every piece of litter removed from the beach matters. So it doesn’t matter if you do 2 minutes or 30."
Examples of relevant articles (by date):
- Citizen Science Promotes Environmental Engagement: (quote) "Citizen science projects are rapidly gaining popularity among the public, in which volunteers help gather data on species that can be used by scientists in research. And it’s not just adults who are involved in these projects – even kids have collected high-quality data in the US."
- Tackling Microplastics on Our Own: (quote) "Plastics, ranging from the circles of soda can rings to microbeads the size of pinheads, are starting to replace images of sewage for a leading cause of pollution – especially in the ocean". Further, "With recent backing from the Crowdsourcing and Citizen Science Act, citizen science is increasingly embraced as a tool by US Federal agencies."
- Citizen Scientists Are Tracking Plastic Pollution Worldwide: (quote) "Scientists who are monitoring the spread of tiny pieces of plastic throughout the environment are getting help from a small army of citizen volunteers – and they’re finding bits of polymer in some of the most remote parts of North America."
- Artificial intelligence and citizen scientists: Powering the clean-up of Asia Pacific’s beaches:(quote) "The main objective is to support citizen scientists cleaning up New Zealand beaches and get a better understanding of why litter is turning up, so preventive and proactive action can be taken."
- Citizen science could help address Canada's plastic pollution problem: (quote) "But citizen engagement and participation in science goes beyond beach cleanups, and can be used as a tool to bridge gaps between communities and scientists. These partnerships between scientists and citizen scientists have produced real world data that have influenced policy changes."
Examples of relevant scientific studies or books include (by date):
- Distribution and abundance of small plastic debris on beaches in the SE Pacific (Chile): a study supported by a citizen science project: (quote) "The citizen science project "National Sampling of Small Plastic Debris" was supported by schoolchildren from all over Chile who documented the distribution and abundance of small plastic debris on Chilean beaches. Thirty-nine schools and nearly 1000 students from continental Chile and Easter Island participated in the activity."
- Incorporating citizen science to study plastics in the environment: (quote) "Taking advantage of public interest in the impact of plastic on the marine environment, successful Citizen Science (CS) programs incorporate members of the public to provide repeated sampling for time series as well as synoptic collections over wide geographic regions."
- Marine anthropogenic litter on British beaches: A 10-year nationwide assessment using citizen science data: (quote) "Citizen science projects, whereby members of the public gather information, offer a low-cost method of collecting large volumes of data with considerable temporal and spatial coverage. Furthermore, such projects raise awareness of environmental issues and can lead to positive changes in behaviours and attitudes."
- Determining Global Distribution of Microplastics by Combining Citizen Science and In-Depth Case Studies: (quote) "Our first project involves the general public through citizen science. Participants collect sand samples from beaches using a basic protocol, and we subsequently extract and quantify microplastics in a central laboratory using the standard operating procedure."
- Risk Perception of Plastic Pollution: Importance of Stakeholder Involvement and Citizen Science: (quote) "The chapter finally discusses how risk perception can be improved by greater stakeholder involvement and utilization of citizen science and thereby improve the foundation for timely and efficient societal measures."
- Assessing the citizen science approach as tool to increase awareness on the marine litter problem:(quote) "This paper provides a quantitative assessment of students' attitude and behaviors towards marine litter before and after their participation to SEACleaner, an educational and citizen science project devoted to monitor macro- and micro-litter in an Area belonging to Pelagos Sanctuary."
- Spatial trends and drivers of marine debris accumulation on shorelines in South Eleuthera, The Bahamas using citizen science: (quote) "This study measured spatial distribution of marine debris stranded on beaches in South Eleuthera, The Bahamas. Citizen science, fetch modeling, relative exposure index and predictive mapping were used to determine marine debris source and abundance."
- Making citizen science count: Best practices and challenges of citizen science projects on plastics in aquatic environments:(quote) "Citizen science is a cost-effective way to gather data over a large geographical range while simultaneously raising public awareness on the problem".
- White and wonderful? Microplastics prevail in snow from the Alps to the Arctic: (quote) ""In March 2018, five samples were taken at different locations on Svalbard (Fig. 1A and Table 1) by citizen scientists embarking on a land expedition by ski-doo (Aemalire project). The citizens were instructed on contamination prevention and equipped with protocol forms, prerinsed 2-liter stainless steel containers (Ecotanca), a porcelain mug, a steel spoon, and a soup ladle for sampling."
Citizen sensing
Citizen
sensing can be a form of Citizen science: (quote) "The work of citizen
sensing, as a form of citizen science, then further transforms Stengers’s
notion of the work of science by moving the experimental facts and
collectives where scientific work is undertaken out of the laboratory of
experts and into the world of citizens." Similar sensing activities include Crowdsensing and Participatory monitoring.
While the idea of using mobile technology to aid this sensing is not
new, creating devices and systems that can be used to aid regulation has
not been straightforward. Some examples of projects that include citizen sensing are:
- Citizen Sense (2013-2018): (quote) "Practices of monitoring and sensing environments have migrated to everyday participatory applications, where users of smart phones and networked devices are able to engage with modes of environmental observation and data collection."
- Breathe Project: (quote) "We use the best available science and technology to better understand the quality of the air we breathe and provide opportunities for citizens to engage and take action."
- The Bristol Approach to Citizen Sensing: (quote) "Citizen Sensing is about empowering people and places to understand and use smart tech and data from sensors to tackle the issues they care about, connect with other people who can help, and take positive, practical action."
- Luftdaten.info: (quote) "You and thousands of others around the world install self-built sensors on the outside their home. Luftdaten.info generates a continuously updated particular matter map from the transmitted data."
- CitiSense: (quote) "CitiSense aims to co-develop a participatory risk management system (PRMS) with citizens, local authorities and organizations which enables them to contribute to advanced climate services and enhanced urban climate resilience as well as receive recommendations that support their security."
Around the world
Africa
- In South Africa (SA), CS projects include: the Stream Assessment Scoring System (miniSASS) which "encourages enhanced catchment management for water security in a climate stressed society."
- Also in SA, "Members of the public, or 'citizen scientists' are helping researchers from the University of Pretoria to identify Phytophthora species present in the fynbos."
- In June 2016, citizen science experts from across East Africa gathered in Nairobi, Kenya for a symposium organised by the Tropical Biology Association (TBA) in partnership with the Centre for Ecology & Hydrology (CEH). The aim was "to harness the growing interest and expertise in East Africa to stimulate new ideas and collaborations in citizen science." Rosie Trevelyan of the TBA said: "We need to enhance our knowledge about the status of Africa's species and the threats facing them. And scientists can't do it all on their own. At the same time, citizen science is an extremely effective way of connecting people more closely to nature and enrolling more people in conservation action".
- The website Zooniverse hosts several African CS projects, including: Snapshot Serengeti, Wildcam Gorongosa and Jungle Rhythms.
- Nigeria has the Ibadan Bird Club whose to aim is to "exchange ideas and share knowledge about birds, and get actively involved in the conservation of birds and biodiversity."
- In Namibia, Giraffe Spotter.org is "project that will provide people with an online citizen science platform for giraffes".
- Within the Republic of the Congo, the territories of an indigenous people have been mapped so that "the Mbendjele tribe can protect treasured trees from being cut down by logging companies". An Android open-source app called Sapelli was used by the Mbendjele which helped them map "their tribal lands and highlighted trees that were important to them, usually for medicinal reasons or religious significance. Congolaise Industrielle des Bois then verified the trees that the tribe documented as valuable and removed them from its cutting schedule. The tribe also documented illegal logging and poaching activities."
- In West Africa, the eradication of the recent outbreak of Ebola virus disease was partly helped by CS. "Communities learnt how to assess the risks posed by the disease independently of prior cultural assumptions, and local empiricism allowed cultural rules to be reviewed, suspended or changed as epidemiological facts emerged." "Citizen science is alive and well in all three Ebola-affected countries. And if only a fraction of the international aid directed at rebuilding health systems were to be redirected towards support for citizen science, that might be a fitting memorial to those who died in the epidemic."
Asia
- The Hong Kong Birdwatching Society was established in 1957, and is the only local civil society aiming at appreciating and conserving Hong Kong birds and their natural environment. Their bird surveys go back to 1958, and they carry out a number of Citizen Science events such as their yearly sparrow census.
- The Bird Count India partnership consists of a large number of organizations and groups involved in birdwatching and bird surveys. They coordinate a number of Citizen Science projects such as the Kerala Bird Atlas and Mysore city Bird Atlas that map the distribution and abundance of birds of entire Indian states.
- The Taiwan Roadkill Observation Network, founded in 2011 and consists of more than 16,000 members as of 2019, is a Citizen Science project where roadkill across Taiwan is photographed and sent to the Endemic Species Research Institute for study. Its primary goal has been to set up an eco-friendly path to mitigate roadkill challenges and popularize national discourse on environmental issues and civil participation in scientific research. The members of the Taiwan Roadkill Observation Network volunteer to observe the animals’ corpses caused by roadkill or other reasons in Taiwan, and upload pictures and geographic locations of the roadkill to an internet database or send the corpses to the Endemic Species Research for making specimen. Because the members come from different areas of the island, the collection of data could serve as an animal distribution map of the island. According to the geographical data and pictures of dead animals collected by the members, the community itself and the sponsor the Endemic Species Center could find out the hotspots and the reasons of animals’ death. One of the most renowned case is that the community successfully detected rabies cases due to the massively collected data and the corpse of Melogale moschata have been accumulated for years and alarmed the government authority to take actions to prevent the prevalence of rabies in Taiwan immediately. Another case in 2014 that some citizen scientists discovered birds that died from unknown causes near an agricultural area, then Taiwan Roadkill Observation Network cooperated with National Pingtung University of Science and Technology and engaged citizen scientists to collect bird carcass. The volunteers collected 250 bird corpses for laboratory tests, which confirmed that the bird deaths were attributable to the pesticides used on crops. This prompted the Taiwanese government to restrict pesticides, and the Bill of Pesticide Management amendment, establishing a pesticide control system, was passed after the third reading in the Legislative Yuan. The results indicated that Taiwan Roadkill Observation Network developed a set of shared working methods and jointly completed certain actions. Furthermore, the community of Taiwan Roadkill Observation Network have made real changes on road resign to avoid roadkill, improved the management of usage of pesticide, epidemic prevention, and so on.
- The AirBox Project was launched in Taiwan to create a participatory ecosystem with a focus on PM2.5 monitoring with AirBox devices. At the end of 2014, the public paid more attention to the PM2.5 level because the air pollution problem became worse, especially in central and southern Taiwan. High PM2.5 level is harmful to our health, such as respiratory problems, so it aroused public concerns and led to an intensive debate about air pollution sources. Some experts indicated that the air quality was affected by pollutants from Mainland China, while some environmentalists believed that it is the result of industrialization such as exhaust fumes from local power plants or factories; however, no one knew the answer because of insufficient data. Dr. Ling-Jyh Chen, a researcher of the Institute of Information Science, Academia Sinica, launched The AirBox Project. His original idea is inspired by a popular Taiwanese slogan Save Your Environment by Yourself. As an expert in Participatory Sensing System, he decided to take this bottom-up approach to collect PM2.5 level data, and through open data and data analysis to have a better understanding of the possible air pollution source. In this ecosystem, massive data was collected from the AirBox device. Data was instantly revealed online to inform people of PM2.5 level so that they take proper action, such as wearing a mask or staying at home, to prevent themselves from directly exploring to polluted environment. Data could be also analyzed to understand the possible sources of pollution and provide recommendations for improving the situation. To be precise, there are four main steps in this project. I) Develop the AirBox device. Developing a device that could correctly collect the data of the PM2.5 level was time-consuming. It took more than three years to develop AirBox that can be easily used, but with both high accuracy and low cost. II) Broad installation of AirBox. In the beginning, very few people were willing to install it at their homes because of their concerns about the possible harm to their health, power-consuming problem and maintenances of it, so that AirBoxs were only installed in a relatively small area. Thanks to the help from Taiwan’s LASS (Location Aware Sensing System) community, AirBox appeared in all parts of Taiwan. As of February 2017, there are more than 1,600 Air Boxes installed in more than 27 countries. III) Open Source and Data Analysis. All measurement results were released and visualized in real-time to the public through different media, such as their website and Facebook page. Data can be analyzed to trace pollution sources.
- Japan has a long history of citizen science involvement, the 1,200-year-old tradition of collecting records on cherry blossom flowering probably being the world's longest-running citizen science project. One of the most influential citizen science projects has also come out of Japan: Safecast. Dedicated to open citizen science for the environment, Safecast was established in the wake of the Fukushima nuclear disaster, and produces open hardware sensors for radiation and air-pollution mapping. Presenting this data via a global open data network and maps
South America
- In 2015 the Asháninka people from Apiwtxa, which crosses the border between Brazil and Peru, began using the Android app Sapelli to monitor their land. The Ashaninka have "faced historical pressures of disease, exploitation and displacement, and today still face the illegal invasion of their lands by loggers and hunters. This monitoring project shows how the Apiwtxa Ashaninka from the Kampa do Rio Amônia Indigenous Territory, Brazil, are beginning to use smartphones and technological tools to monitor these illegal activities more effectively."
- In Argentina, two smartphone Android applications are available for CS. i) AppEAR has been developed at the Institute of Limnology and was launched in May 2016. Joaquín Coachman is a researcher who developed an "application that appeals to the collaboration of users of mobile devices in collecting data that allow the study of aquatic ecosystems" (translation). Coachman stated: "Not much of citizen science in Argentina, just a few more oriented to astronomy specific cases. As ours is the first. And I have volunteers from different parts of the country that are interested in joining together to centralize data. That's great because these types of things require many people participate actively and voluntarily" (translation). ii) eBird was launched in 2013, and has so far identified 965 species of birds. eBird in Argentina is "developed and managed by the Cornell Lab of Ornithology at Cornell University, one of the most important ornithological institutions in the world, and locally presented recently with the support of the Ministry of Science, Technology and Productive Innovation of the Nation (MINCyT)" (translation).
- Projects in Brazil include: i) Platform and mobile app 'Missions' has been developed by IBM in their São Paulo research lab with Brazil's Ministry for Environment and Innovation (BMEI). Sergio Borger, an IBM team lead in São Paulo, devised the crowdsourced approach when BMEI approached the company in 2010. They were looking for a way to create a central repository for the rainforest data. Users can upload photos of a plant species and its components, enter its characteristics (such as color and size), compare it against a catalog photo and classify it. The classification results are juried by crowdsourced ratings. ii) Exoss Citizen Science is a member of Astronomers Without Borders and seeks to explore the southern sky for new meteors and radiants. Users can report meteor fireballs through uploading pictures on to a webpage or by linking to YouTube.
- In Chile CS projects include (some websites in Spanish): i) Testing new cancer therapies with scientists from the Science Foundation for Life. ii) Monitoring the population of the Chilean bumblebee. iii) Monitoring the invasive ladybird Chinita arlequín. iv) Collecting rain water data. v) Monitoring various pollinating fly populations. vi) Providing information and field data on the abundance and distribution of various species of rockfish.
- Projects in Colombia include (some websites in Spanish): i) The Communications Project of the Humboldt Institute along with the Organization for Education and Environmental Protection initiated projects in the Bogotá wetlands of Cordoba and El Burro, which have a lot of biodiversity. ii) In the Model Forest of Risaralda, the Colombia 'proyecto de Ciencia Abierta y Colaborativa' promotes citizen participation in research related to how the local environment is adapting to climate change. The first meeting took place in the Flora and Fauna Sanctuary Otún Quimbaya. iii) The Citizen Network Environmental Monitoring (CLUSTER), based in the city of Bucaramanga, seeks to engage younger students in data science, who are trained in building weather stations with open repositories based on free software and open hardware data. iv) The Symposium on Biodiversity has adapted the CS tool iNaturalist for use in Colombia. v) The Sinchi Amazonic Institute of Scientific Research seeks to encourage the development and diffusion of knowledge, values and technologies on the management of natural resources for ethnic groups in the Amazon. This research should further the use of participatory action research schemes and promoting participation communities.
- Since 2010, the Pacific Biodiversity Institute (PBI) seeks "volunteers to help identify, describe and protect wildland complexes and roadless areas in South America". The PBI "are engaged in an ambitious project with our Latin American conservation partners to map all the wildlands in South America, to evaluate their contribution to global biodiversity and to share and disseminate this information."
Conferences
The first Conference on Public Participation in Scientific Research was held in Portland, Oregon in August 2012. Citizen science is now often a theme at large conferences, such as the annual meeting of the American Geophysical Union.
In 2010, 2012 and 2014 there were three Citizen Cybersience summits, organised by the Citizen Cyberscience Centre in Geneva and University College London. The 2014 summit was hosted in London and attracted over 300 participants.
In January 2015, the ETH Zürich and University of Zürich hosted an international meeting on the "Challenges and Opportunities in Citizen Science".
The first citizen science conference hosted by the Citizen
Science Association was in San Jose, California, in February 2015 in
partnership with the AAAS conference. The Citizen Science Association conference, CitSci 2017, was held in Saint Paul, Minnesota, United States, between 17 and 20 May 2017. The conference had more than 600 attendees. The next CitSci is in March 2019 in Raleigh, USA.
The platform "Österreich forscht" hosts the annual Austrian citizen science conference since 2015.