Pollution

The removal of the Edwards Dam on Maine’s Kennebec River helped river conservationists reimagine what’s possible.

The gigantic Ozark hellbender salamander is in trouble in the wild, but one zoo — and a hard-working team — is helping to boost its populations.

Scientists have found that many inland waterways are getting saltier, and that’s helping to mobilize heavy metals and other chemicals from the soil, creating potentially dangerous combinations.

The Pantanal in South America is critical for fighting climate change and protecting endangered species. The race is on to protect it.

Books coming out this month look at saving snow leopards and killer whales, Buddhist and Muslim solutions to climate change, and new ways to grow food.

We’ll have to contend with new limits to the Clean Water Act, growing threats from climate change and fixing our aging infrastructure.

Sharon Levy’s new book offers a fascinating history of wetlands, their human-caused decline and our growing understanding of why we need to restore them.

When something dies in nature, it becomes part of a system that gives life. Can humans re-embrace the same concept?

They tried to bury the report by releasing it on Black Friday, but the threats we face — and possible solutions we can take on — are still very real.

Marine biologist Ayana Elizabeth Johnson talks about how climate change threatens our oceans, the implications for environmental justice and the most promising solutions.