Explainer

Protecting these nine species will help save the region's iconic sagebrush prairies, grasslands, and mountains.

You've probably heard that there's a lot of plastic swimming around in our oceans. But do you know how much? (Spoiler alert: It's way more than you think.)

By embracing green infrastructure, these urban areas have a solid defense against increased drought or flood.

Ditch-diggers and cement trucks? Try trees and rainwater cisterns. City planners across the country are realizing that green infrastructure is the key to climate resilience.

We’ve all heard about it, but few of us really understand why this piece of legislation from the 1970s is so important—and in need of protection itself.

We need wind farms to produce renewable power, and new solutions can keep the giant turbines from also harming birds and bats.

Tar sands oil is harder to clean up than conventional crude. Here are the reasons why.

The U.S. Forest Service recently protected most of the George Washington National Forest from drilling. Will more frack-free forests follow?

The planet's largest carbon emitter is taking steps to brighten their future—and the world's.