Heat-trapping gases increase likelihood of extreme weather
By Summit Voice
FRISCO — Australia’s January heatwave pushed “the limits of previous temperature extremes,” and now, climate scientists are saying they’re more than 90 percent sure that human influences on the atmosphere dramatically increased the likelihood of the extreme summer heat.
Climate scientists have long been saying that global warming loads the climate dice to increase the odds of extreme weather, particularly extreme heat, but they’ve been reluctant to attribute any single event to human-caused climate change.
The findings were announced just as the southwestern U.S. was starting to experience a persistent heatwave that is expected to result in some all-time record temperatures in the region.
The research led by the University of Melbourne shows that global warming caused by heat-trapping greenhouse gases increases the odds of more record-hot temperatures at least fivefold. The research also suggests that the greenhouse gas fingerprint overpowers, at least in some cases, the influence of the Pacific El Niño-La Niña cycle. Continue reading “Global warming: Study finds greenhouse gas fingerprints all over Australia’s record-breaking summer heatwave”