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Atmospheric rivers and blast cyclones are becoming an increasingly frequent and intense part of the North American weather landscape. Atmospheric rivers can cause massive flooding across the country. A bomb cyclone, combined with hurricane conditions and Arctic cold, can pose enormous risks to individuals through potentially deadly cold exposure. They can even occur at the same place at the same time. When that happens, they complement each other, as in December 2022. Probably produce a combined effect greater than the sum of the individual effects received one at a time.
An undeniable increase in the frequency and intensity of either or both of these extreme weather events is at least in full agreement with projections of climate change caused by global warming. It contains thousands of maximum temperature readings recorded simultaneously across Europe.The scope is whatever explains that the data from these events should be global
Given its powerful findings based on honest science, there is not enough evidence to support the paradoxical hoax view. It is the fallacy that the relationship between global warming and the growing impact of climate change due to human emissions of greenhouse gases is a hoax. Proving the negative is impossible, and here are some examples of why.
This is especially true as the effects of atmospheric rivers and cyclones span continents whenever they occur. Deadly flooding rates from atmospheric rivers extend from the West Coast to Kentucky. Extreme cold from the Arctic bomb cyclone stretches south to Texas, west to the Rocky Mountains, and east to the coast of New England.
Adding European heatwaves to the equation, it is clear that whatever causes these extremes must be explained by continental phenomena such as jet streams. and see discussion. A common thread is the weakening of the jet stream caused by the exaggerated warming of the Arctic compared to the modest increase in temperature across the tropics. It is a sign of degeneration.
With regard to continental climates, this decrease weakens the jet stream, allowing the Arctic eddy to bring cold closer to the Gulf of Mexico, making way for atmospheric rivers to invade from the western Pacific. Allows you to go north with Nothing else can “switch signs” like that.
So what’s the extra harm? Extreme weather happens all the time. Yes, but atmospheric rivers have been so rare in the past that few places are prepared.In North America the winter polar vortex is starting to become commonplace, and in Europe he says the December heat wave is happening no one expected that.
In Kentucky, a flash flood in 2021 killed 39 people due to inadequate warning systems. Flooding left him stranded in Death Valley by 1,000. California has been devastated by heavy rainfall linked to climate change. A massive winter storm in December 2022, caused by the expansion of the polar vortex across central North America, affected more than 200 million Americans. At least 3,000 flights have been canceled due to dangerously cold weather.
Much attention has been focused on Texas, where 210 people were killed in a blast cyclone in February 2021. Many blame the state’s self-contained, isolated power grid for being completely dysfunctional. Some Texans said he had no power for over a week in some places. For 2022, Texas dodged the bullet as it had some adaptive changes. The grid was held this time, but just barely.
Combining these lines of evidence, it is clear that both the atmospheric river and bomb cyclones of 2022-23 should not be viewed as a one-off extreme weather event. They are part of the irrefutable global fingerprint of climate change, especially when they are combined with thousands of record temperatures across Europe at the same time. They are a harbinger of what we can expect as the planet moves towards a new normal (sometime in the next century when things settle down). I can only imagine what horrible things could happen in the meantime. (Such careful words were chosen carefully.)
Benjamin Santer, a member of the National Academy of Sciences, Engineering and Medicine and a globally recognized expert in climate science, writes that it is dangerous to:
Attribution science on a continental scale is still in its infancy, but the consequences of these events are undeniably enormous. Thus, even with the modest finding of ‘global warming compatibility’ leading to moderate confidence in the relationship between global warming and these events, risk management principles teach us a simple lesson. increase.
This could get even worse as the Earth plummets into a new hotter normal to be established sometime in the next century.
Dr. Gary Yohe is Professor of Economics and Environmental Studies at The Huffington Foundation and Professor Emeritus at Wesleyan University.
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