Their dams cause floods, and that gets them in trouble with humans. But in the right place, more water can be a big help.

Coral reefs may seem like paradise, but they are being degraded by a range of global and local factors, including climate ...

Humans live in a world abundant in salt, but this everyday seasoning is a luxury for wild herbivores, and it's far from clear ...

Around the world, politicians, backed by powerful corporations, are presenting the public with false choices between ...

The most comprehensive assessment of the global environment ever undertaken has found that investing in a stable climate, ...