1/29/2024 0 Comments Pacific northwest climate![]() The Pacific Northwest heat wave should be a big warning, said co-author Dim Coumou, with the Institute for Environmental Studies at VU Amsterdam and the Royal Netherlands Meteorological Institute. If global warming has pushed the climate past a heat wave tipping point, he added, “we are worried about these things happening everywhere.” “It was surprising and I’m shaken that our theoretical understanding of how heat waves behave was so roughly broken. “It was way above the upper bounds,” he said. The extreme temperature spike shook up some fundamental assumptions about heat waves, said co-author Geert Jan van Oldenborgh, of the Royal Dutch Meteorological Institute. “We have seen temperature jumps in other heat waves, like in Europe, but never this big.” “I think it’s by far the largest jump in the record that I have ever seen,” said Fredi Otto, a University of Oxford climate researcher and co-author of the study. ![]() The temperatures were so far off the charts that the scientists suggested that global warming may be triggering a “non-linear” climate response, possibly involving drought magnifying the warming, to brew up extreme heat storms that exceed climate projections.Ĭlimate change, caused by greenhouse gas emissions, made the Pacific Northwest heat wave at least 150 times more likely, and increased its peak temperatures by about 3.6 degrees Fahrenheit, the study by World Weather Attribution concluded. The high temperatures in late June that killed hundreds of people in Oregon, Washington and Canada were so unusual that they couldn’t have happened without a boost from human-caused global warming, researchers said Wednesday, when they released a rapid climate attribution study of the heat wave in the Pacific Northwest.
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