New UN report on climate change sets off warning bells – says the world is dangerously close to runaway warming, and that humans are unequivocally to blame
Weather extremes once considered rare or unprecedented are becoming more common -- a trend that will continue even if the world limits global warming to 1.5C.Tropical cyclones are getting stronger. Most land areas are seeing more rain or snow fall in a year. Severe droughts are happening 1.7 times as often. And fire seasons are getting longer and more intense.
"In the past, people would say 'you can't say anything about any individual event,'" said IPCC co-author Michael Wehner, a climate scientist at the Lawrence Berkeley National Laboratory in California.Arctic summers could soon be free of ice
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