Michele Thieme

How a wild river became a national park—and sparked a movement

The World's Dams: Doing Major Harm but Manageable Problem?

New Study Finds Proposed Hydropower Dams Threaten Rivers

Rivers Can Be Climate Change Solutions, Too

Almost a Quarter of All Freshwater Fish Species Are in Peril, Thanks to Humans

More Than 500 Dams Planned in Protected Areas Around the Globe, Study Finds

Two-Thirds of the Longest Rivers No Longer Flow Freely—and It's Harming Us

Only a Third of World’s Great Rivers Remain Free Flowing, Analysis Finds

Two-Thirds of the World’s Longest Rivers No Longer Run Free

Earth Is Losing Its Free-Flowing Rivers

Studying the Unloved Through the Wisdom of Crowds

The Freshwater Giants Are Dying