After a summer heat record, heat research waves will become more dead in the next 30 years. Veuer's Justin Kircher has the story.
Yes, there are gigantic waves up there in the atmosphere, and our weather has great influence here down here.
But the waves are not water, they are powerful "jets" of wind a a new study says they act strange because of man-made global warming. This, in turn, seems to cause more fierce and extreme weather conditions for us Earth – and it could grow in the coming decades.
In the summer of 2018, for example, the impact on extreme weather due to the strange behavior of jet winds was felt throughout the world, according to study author Michael Mann of Penn State University.
"He played real-time on television screens and newspaper headlines in the form of an avant-garde model of extreme floods, droughts, storms and fires," Mann said.
What is happening at a very basic level is that the unusual heat in the Arctic causes currents of streams – the rivers of air in the air that push and pull the weather around us – to slow down, stop or fly in strange ways. When the plugs of the plug are immobilized in their place, weather systems can be trapped and cause havoc here.
"If the same weather conditions remain for weeks in a region then sunny days can turn into a severe wave of heat and drought, and rains can lead to floods," said co-author Stephen Ramststor of the Institute on Climate Impact Research in Germany.
Extreme and unusual jet currents – technically known as "almost resilient amplification – could increase by 50 percent by 2100," the study said.
A wild card, however, in this theory is that another human-induced component – atmospheric pollution – could really neutralize the impact of global warming on our atmosphere. This is because pollutants reflect sunlight back into space, keeping the Earth cooler.
Daniel Swain, a UCLA clinical scientist and the National Center for Atmospheric Research, who did not participate in the new research, told Inside Climate News that the study has some "exciting new evidence for the relationship between enhanced Arctic heating and extreme weather conditions during the summer months. "
As for what we should do for the warming planet, the song remains the same: "The future is still very much in our hands when it comes to dangerous and devastating summer weather," Mann said. "It's just a matter of our will to move quickly from fossil fuels to renewable energy."
The study appeared in the journal Science Advances.
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