Anyone who disregards the threats of climate change “is stupid,” says retired Lieutenant General John G. Castellaw.

President Trump and Congress ignore the nation’s poorest residents along the U.S.-Mexican border, where an environmental health crisis threatens millions of lives.

A new book offers insight into how our public lands were created — and what that means as we fight to protect them today and in the future.

Trump’s proposed budget wipes out funding for numerous programs devoted to climate change, public lands and sustainable energy.

We need all the tools we can get to address the environmental and economic inequality felt by many across the globe.

Drilling in the refuge was tucked into in last month’s Republican tax bill, defying decades of attempts to protect this pristine wildnerness.

A challenge from the reporter who blew the lid off of Thailand’s Tiger Temple and exposed illegal wildlife trafficking from a Buddhist monastery.

How an elementary-school science teacher helped a Utah Republican congresswoman start to take leadership on climate change.

A new book dives into the ever-changing history of conservation legislation — and gives us a hint of the future.

Laws have banned plastic bags in some places, but taking the next steps requires overcoming some pretty major hurdles.