Dams

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.

Better accounting can go a long way in establishing sound policy to tackle the climate crisis.

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

We also have good news and bad news about dams and coal, plus how science and renewable energy can support Ukraine.

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

A rare “orchid of the falls” plant has been declared extinct after a hydroelectric dam destroyed its only habitat. Could others soon follow?

Removing dams is one thing, but thousands of levees also restrict rivers in the United States — and they’re not working as intended.

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

A modern movement to restore the lake symbolizes the broader contest between unsustainable industrialization and challenges such as climate change.

The United States must grapple with a legacy of 90,000 dams, many unsafe or unwanted.