Pope Francis addresses attendees in the opening ceremony to commence a plenary meeting of the United Nations Sustainable Development Summit 2015 at the United Nations headquarters in Manhattan, New

It’s no news that Greenland is in serious trouble — but now, new research has helped quantify just how bad its problems are.

When the world moved to phase out ozone-destroying chlorofluorcarbons, or CFCs, it solved one enormous and urgent environmental problem — but it left behind another.

The planet’s largest mangrove forest could be facing serious trouble in the form of two new coal-fired power plants, environmentalists say — and they’re urging the United Nations to draw greater at

Researchers are increasingly concerned that the Amazon rain forest — the world’s largest tropical forest, a huge repository of carbon and a vital cycler of water into rainfall across much of South

For the first time, on the dimly glowing remnants of a failed star mere light-years from Earth, scientists have found evidence of water clouds beyond our solar system.

SAN JOSE, Calif.

It’s hard to get people to change their habits, even when doing so could have lasting benefits for the environment.

For a number of years now, climate change skeptics have argued that there’s a key part of the Earth’s climate system that upends our expectations about global warming, and that is showing trends th

The long-finned, tiger-striped lionfish may be one of the most stunning swimmers in the sea — but it’s also becoming one of the most problematic.