A government report released Wednesday said climate change is likely to pose a significant national security challenge for ...

Most Americans are willing to pay a little more each month to fight global warming — but only a tiny bit, according to a new ...

The Latest on the trial of seven people involved in a weekslong armed standoff at a national wildlife refuge in Oregon (all ...

A decade ago, California vowed to dramatically slash greenhouse gas emissions by 2020. With the nation's most populous state ...

Opening his final trip to Asia, President Barack Obama is expected to join Chinese leader Xi Jinping in announcing their ...

Climate negotiators ended their first talks after last year's landmark Paris Agreement on Thursday with some delegates ...

A massive habitat restoration effort by the U.S. government doesn't do nearly enough to improve Northwest salmon runs, a ...

Australia's election campaign will officially start soon with climate change policy and union corruption in the national ...

As many as 170 countries are expected to sign the Paris Agreement on climate change Friday in a symbolic triumph for a ...

Global warming has mostly made the weather more pleasant for Americans over the last 40 years, which may explain why much of ...