An initiative of the Center for Environmental Journalism at the University of Colorado Boulder

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As the Salton Sea shrinks, it leaves behind a toxic reminder of the cost...

Scientists fear that eventually the toxic residue of more than a century of agricultural runoff will be blown into the air — and into the lungs of residents.

Video and photos: Captain Jack Mill drone flight, July 2019

This photo gallery contains images taken by drone for our story on acid mine drainage in Colorado, which featured the Captain Jack Mill...

Decades later, abandoned mines continue to haunt Colorado’s waterways

According to a 2017 study, there are over 23,000 abandoned mines across Colorado and 1,800 miles of streams that are impaired due to pollutants related to acid mine drainage.

At least 2% of US public water systems are like Flint’s

Is your community’s water tainted with lead? The data might not have been reported.