Slower ocean circulation as the result of climate change could intensify extreme cold weather in the U.S., according to new UArizona research.
Throughout Earth's oceans runs a conveyor belt of water. Its churning is powered by differences in the water's temperature and saltiness, and weather patterns around the world are regulated by its activity.
A pair of researchers studied the Atlantic portion of this worldwide conveyor belt called the
Atlantic Meridional Overturning Circulation, or AMOC, and found that winter weather in the United States critically depends on this conveyor belt-like system.
As the AMOC slows because of climate change, the U.S. will experience more extreme cold winter weather.The
study, published in the journal
Communications Earth & Environment was led by Jianjun Yin, an associate professor in the University of Arizona
Department of Geosciences and co-authored by Ming Zhao, a physical scientist at the National Oceanic and Atmospheric Administration's Geophysical Fluid Dynamics Laboratory.
AMOC works like this: Warm water travels north in the upper Atlantic Ocean and releases heat into the atmosphere at high latitudes. As the water cools, it becomes denser, which causes it to sink into the deep ocean where it flows back south.
"This circulation transports an enormous amount of heat northward in the ocean," Yin said. "The magnitude is on the order of 1 petawatts, or 10 to the 15 power watts. Right now, the energy consumption by the entire world is about 20 terawatts, or 10 to the 12 power watts. So, 1 petawatt is enough to run about 50 civilizations."
But as the climate warms, so does the ocean surface. At the same time, the Greenland ice sheet experiences melting, which dumps more freshwater into the ocean. Both warming and freshening of the water can reduce surface water density and inhibit the sinking of the water, slowing the AMOC. If the AMOC slows, so does the northward heat transport.
Comment: There's increasing evidence supporting the theory of Earth Changes and the Human-Cosmic Connection, as described by Pierre Lescaudron in his book of the same name. With the anniversary quakes in Mexico this year being just one recent example. And, if this year's uptick in extreme weather phenomena is anything to go by, when we consider the suffering much of the world's population has endured over the past year, particularly with the addition of the violations to their person with the coercive, experimental Covid injection and passport roll out, 2022 could be a doozy.
It may be that we're already seeing signs of what's up ahead this winter with deadly blizzards, record breaking snowfall, and winter appearing in some regions up to a month earlier than usual:
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Also check out SOTT radio's:- Behind the Headlines: Earth changes in an electric universe: Is climate change really man-made?
- NewsReal: Climate Disaster Plans and Vaccine War Games: Government to the Rescue!
And SOTT's monthly documentary Earth Changes Summary - October 2021 - Extreme Weather, Planetary Upheaval, Meteor Fireballs: