News and analysis
March 01, 2015
PREMIUM CONTENT FOR SUBSCRIBERS. SUBSCRIBE TODAY

Environmental Sleuths Find Signs of Fracking

Online volunteers at the nonprofit SkyTruth scan aerial images for signs of oil and gas drilling.

David Manthos

A pond built to hold wastewater from fracking

When SkyTruth set out to map hydraulic fracturing—the technique for drilling oil and gas better known as fracking—it tapped a cadre of dedicated online volunteers to review thousands of aerial photographs.

The West Virginia nonprofit, which uses...

This content is available exclusively to Chronicle subscribers