Biodiversity loss threatens national security. We need to invest in technologies to preserve our vital food varieties.

A recent string of massive landslides in Alaska and around the world bears the fingerprint of climate change.

Erin Brockovich, E.O. Wilson, Jane Fonda and others deliver important new books addressing the fights against climate change, the extinction crisis and toxic pollution.

This month’s western megafires have burned millions of acres and upended countless lives. It’s a sign of things to come if we don’t start to listen and act.

The EPA allowed polluters to stop monitoring or even preventing their emissions, and many states followed suit. Here’s what happened — and how to fix it.

In The Reindeer Chronicles, Judith D. Schwartz shows how badly damaged landscapes are being restored across the world — and why more of that work is deeply needed.

Videos of people getting too close to, and touching, the rare apes motivates other people to want to do the same — and that could spread diseases like COVID-19 to a critically endangered species.

Ecuador’s Los Cedros Reserve, one of Earth’s most biodiverse habitats, could be wiped out by mining. A court case could save it — and set a precedent for the planet.

“Routine flaring” from oil wells produces emissions that harm the climate and human health. Two states have proposed new rules to reduce it, just as the true scope of the problem emerges.

Here’s what we know (and don’t know) about how dangerous PFAS chemicals travel ocean currents and harm wildlife — and what that could mean for humans.