The League of Conservation Voters will make a multi-million dollar pitch to millennials in crucial battleground states against voting for...

Hillary Clinton describes the issue as "one of the most urgent threats of our time." Donald Trump dismisses the problem...

After covering global warming ­debates as a journalist on and off for almost 30 years, with initial credulity, then growing...

Many have doubted forecasts calling for the onset of the first La Niña in almost five years, believing that its...

Absolutely stunning new research by the University of Washington (et al) confirms that 500 newly discovered deep ocean seafloor methane...