Fresh Water

Wetlands can help remove nutrient pollution causing low-oxygen “dead zones.” But how much benefit we reap depends a lot on placement, a new study finds. 

Pesticides, sewage, mining waste, air pollution and trash — these new books address the toxic elements in our society.

Those fighting to protect the planet face intense police repression that's funded by private corporations.

Wastewater exposes plants and wildlife to hundreds of chemical compounds. Researchers are learning about potential side effects and solutions.

Plus what Maine did right (and wrong), billionaires in space, and rebranding invasive species.

The Western drought has exacerbated a water crisis, years in the making, that threatens the health of millions of birds — and so much more.

A new report puts into focus for the first time the scope of the state’s drinking-water problems and what it will take to fix them. 

The pressures of climate change and human land use could lead to the disappearance of unique biodiversity and vital ecological services.

Residents of northeastern Oklahoma still suffer from the toxic fallout of shuttered mines. 

Atlantic salmon are perilously close to extinction in the United States. Taking down a few dams could go a long way to aiding their recovery, experts say.