Bomb cyclones, nor’easters and the messy relationship between weather and climate

new jersey snow storm

CAROLYN KORMANN / NEW YORKER – After three frigid nor’easters in less than two weeks, even the most devout prophet of climate change could be forgiven for echoing the sentiment that President Trump tweeted a few months ago, to much ridicule, shortly before one of the coldest New Year’s Eves on record: “Perhaps we could use a little bit of that good old Global Warming.” By this point, most people outside the White House understand that climate is not the same as weather—that climate is the forest and weather is the trees. Yet the global climate system is enormously complex, and there is, in fact, a lively scientific debate in progress about the relationship between human-caused climate change (especially in the Arctic) and the increased frequency of extreme cold-weather events across the United States—blizzards, bomb cyclones, and the dreaded wintry mix …

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