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Articles on Citizen science

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A group of Enviro-Champs using a velocity plank to measure the depth and discharge of a river. Courtesy DUCT and GroundTruth.

Sewage leaks put South Africa’s freshwater at risk: how citizen scientists are helping clean up

In South Africa, a group of citizen scientists who test water quality and log the results on a specialised app have helped keep the water supply for 4.3 million people clean.
Rather than a tracking tag telling scientists where this shark traveled, its violent removal let them observe an unexpected regeneration process. Josh Schellenberg

I set out to investigate where silky sharks travel − and by chance documented a shark’s amazing power to regenerate its sabotaged fin

After scientists’ GPS tracking tag was violently removed from one shark’s dorsal fin, they were in for a surprise: The wound didn’t just heal, but the missing tissue grew back.
A lead pipe in the kitchen ceiling of a home in Newark, N.J. AP Photo/Julio Cortez

Citizen science projects tend to attract white, affluent, well-educated volunteers − here’s how we recruited a more diverse group to identify lead pipes in homes

For a project on identifying lead water pipes in homes, outreach through partner groups produced a more representative set of volunteers.

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