Fresh Water

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

Disadvantaged communities have suffered disproportionately from underinvestment in clean and affordable water. That could change with legislation passed last year.

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

Lost in much of the coverage of the region’s water woes is the ecological crisis caused by prolonged drought, climate warming and development.

An upcoming project would change the flow of the Mississippi River and its sediment to make up for land the coast is losing due to climate change and sea-level rise.

A new book looks at the “dark underbelly of our favorite fish” and urges regulators and businesses to better protect wild salmon, coastal ecosystems and consumers.

One man’s mission to remove trash from the polluted river in Baghdad has inspired a nationwide movement that shows how environmental efforts inspire peace.

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

Some rivers and lakes wouldn’t be swimmable today without this critical law. But it could use a refresh to help meet our current challenges.

I became a plaintiff in a lawsuit for the Clear Lake hitch — a fish I’ve never seen. As the species quickly disappears, how much longer will it swim the waters of California?