Study: Winter tornadoes to get more powerful as world warms

Nasty winter tornadoes—like the deadly ones last week that hit five states—are likely to be stronger and stay on the ground longer with a wider swath of destruction in a warming world, a new study shows.

When global warming stops, seas will still rise: study

Even if humanity beats the odds and caps global warming at 1.5 degrees Celsius above preindustrial levels, seas will rise for centuries to come and swamp cities currently home to half-a-billion people, researchers warned ...

'Code red': UN scientists warn of worsening global warming

Earth is getting so hot that temperatures in about a decade will probably blow past a level of warming that world leaders have sought to prevent, according to a report released Monday that the United Nations called a "code ...

Time running out to save coral reefs

New research on the growth rates of coral reefs shows there is still a window of opportunity to save the world's coral reefs—but time is running out.

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