Harsh cold descended on the nation's midsection Monday as a polar vortex gripped the Rockies and Northern Plains after winter storms pummeled the eastern U.S. over the weekend, killing at least 17 ...
Extreme weather events are becoming more frequent as a result of climate change. River floods such as those along the Ahr and ...
Extreme cold warnings have been issued for an 11-state swath of the U.S. stretching from the Canada border to Oklahoma and ...
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