These aquatic heroes do so much to keep freshwater ecosystems healthy — and we’re killing them off at a record pace.

Ten bills in Congress would add conservation protections to 7,000 miles of river to safeguard drinking water, biodiversity and recreation.

Freshwater mussels are some of the most imperiled species in North America. Experts say we can change that by rethinking our infrastructure.

Conservationists, activists, scientists and other experts offered their insight into the year’s most pressing issues.

A new study hopes to inspire water managers — and the rest of us — to begin planning for how climate change will dramatically reduce snowpack.

Water releases from dams aren’t that good at mimicking natural conditions, a new study finds.

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.