Oceans & Clean Water

Accumulating sediment in reservoirs is affecting how much water dams can hold back to supply water for drinking, irrigation and flood control.

Can science and tradition finally help heal the region’s peoples and bring balance to its biodiversity-rich waters and mangrove forests?

To anticipate the impacts of a historic river restoration, we need to understand how salmon, bats, insects, algae and other parts of the ecosystem are behaving today.

In north Brazil, the combined effects of a hydroelectric dam and earth-shifting livestock have altered the landscape — and upended peoples’ lives.

A growing movement across the continent is working to remove thousands of barriers and restore some of the world’s most fragmented rivers.

Humble ponds have a key role to play in fighting climate change and aiding conservation — but only if we protect them.

Human activities have put the ocean in serious trouble. A bold, Rights of Nature-based proposal aims to turn the tide.

Human activities have imperiled our waterways — along with almost one-third of freshwater fish and many other aquatic species.

Mounting studies highlight greenhouse gas emissions from reservoirs, and now a coalition of environmental groups has called for regulatory action.

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