The Los Angeles native wants to fight smog—and make the city a leader in a green-tech revolution at the same time.

Parts of the Southern and Northeastern U.S. faced tornado threats this week. Scientists are trying to parse out the climate links in changing tornado activity.

A new study published in The Lancet Global Health reveals a previously underappreciated tension at the heart of international climate negotiations: policies designed to protect developing countries ...

A stalwart conservationist for decades, the Hollywood icon is using his legendary status to make world leaders actually pay ...

Scientists spent the first weeks of the year on an expedition to Antarctica to study Thwaites Glacier, which is melting at an alarming rate. If it breaks apart entirely, it could push up global sea ...

Meteorologists are reaching for superlatives to describe an oncoming heat wave so intense and rare for this time of year that it could leave some locations shattering their all-time temperature ...