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Extreme temperatures melt in the Arctic



June 18, 2019 from Steve Hanley


If you live in the United States or Canada, you may have noticed that daytime temperatures are on the cold side. (My wife and I had the pellet stove that was only a week ago, something we never did in June.) There is an explanation, scientists say. Typically, over the Arctic there is a mass of cold air, but this year the world's top temperatures are as high as 40º Fahrenheit higher than normal .

All this warm air pushes the cold air and sending it cascading down to North America, making our weather cooler and damp from normal. How bad is this? This tweet from Bill McKibbon makes it crystal clear.

The Melting of the Owl

It's getting worse. A team of researchers from the University of Alaska Fairbanks recently traveled to the Canadian Arctic and discovered that the ever-frozen surface thawed 70 years earlier than predicted. They were amazed at how quickly a sequence of unusually hot summers destabilized the upper layers of giant underground ice blocks that had been frozen for millennia, according to a report in The Guardian . "What we saw was amazing," said Vladimir Romanovski, Professor of Geophysics at the University, Reuters . "This is an indication that the climate is now warmer than anytime during the last 5000 years or more."

The Fairbanks University study has been going on for over a decade, but when the airplane research team rode under the clouds near an abandoned military installation 300 kilometers north of the nearest civilization. They were shocked when they saw that the endless frozen tundra they were waiting for was gone. – high depressions and lakes, known as thermocarp. Once scarce, the vegetation flourishes. Professor Romanovski said the scene reminds him of the consequences of the bombing. "It's a canary in the hollow," says Louisa Farquharson, a postdoctoral and co-author of the study. "It is very likely that this phenomenon will affect a much wider region and that is what we will look at later."

What's the big deal about eternal frozen? It's just frozen water, is not it? Well yes. but it also consists of large amounts of methane. And methane, you may remember, is a powerful greenhouse gas 80 times more powerful than carbon dioxide when it comes to warming the atmosphere. More methane means higher temperatures, which means more melting and even higher temperatures. This is what is known as feedback and predicts catastrophic environmental changes that are happening right now, not decades or centuries in the future.

– said Jennifer Morgan, executive director of Greenpeace International, says Guardian . "This premature thaw is another clear signal that we must decarbonize our economies and immediately." melted over the Arctic Ocean at this time of year. Melting in Greenland is also far ahead of normal at this time of year and can set a record. This is "another series of extreme events consistent with the long-term warming trend," says Labe. Typically, the melting of this widespread over the ice cover does not happen until mid-summer, if even then.

Weather satellites have been observing Arctic sea ice since 1979. June. The degree of ice is particularly depleted in part of the Arctic Ocean adjacent to the Pacific Ocean. "It is quite remarkable how open water is in this area," says Labe. according to Washington Post . They displace the cold air, usually contained in this area, in the middle latitudes of North America, like the door of the refrigerator that has been left open.

This made the last changes in the jet. "Reaction flow this week was one of the craziest I've ever seen!" Says Jennifer Francis, a leading researcher who studies the changes in the Arctic and Middle-Time, and a senior scientist at the Woods Hole Research Center. She assumed that the Arctic conditions may have played a role in the extreme model of the jet that prompted the swarm of the tornado and recorded flooding in the central US in the last two weeks of May. "We can not say that rapid Arctic warming causes this particular pattern, but it is certainly in line with that," says Francis.

This is a too late baby, it's too late

Meanwhile, the presumed president and implacable Republican jellyfish continue to slave following the wishes of the fossil fuel industry. The first is rejecting climate warnings with a self-satisfied "I do not believe in it", as if someone could just say that 2 + 2 = 4 is a fake news if they wish. The latter are too concerned about keeping the Koh's brother's dollar to take care of them. Evidence shows that the world has already entered an era of unprecedented climate change so that average global temperatures rise well above 1.5 ° C, but global leaders do little to solve the problem. Israel devotes a new community to Donald Trump. England prayed for a new war in the Falkland Islands to take his thought out of Brexit's problems. And US Secretary of State Mike Pompeo launches around the world how the ice melts in the Arctic is a great thing because it will make it easier to drill oil and gas in the region.

Any hope that the world can limit global warming to catastrophic levels quickly diminishes. In fact, it may be too late for people to do something meaningful about the rotten, stinking mess they have done that reminds me of this prophetic creation by Ip Harburg:

God has made the world for six days. On the seventh, He said, "I will rest."

So He left things to move in orbit

To give him a dry movement test

A billion years passed,

His spirit fell, as he said, "Oh, okay. It was only a six-day job. "


    
    
Arctic, Arctic Melting, Bill McKibben, Climate Change, Melting Eternal Frozen, Ip Harbour


About Steve Hanley Steve writes about the relationship between technology and sustainability by his home on Rhode Island, and elsewhere, where Singularity can lead him. His motto is: "Life is not measured by how many breaths we take, but by the number of times that take away our breath!" You can follow it on Google+ and on Twitter .




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