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Earth Science

Arctic Warming Linked To Colder Winters (bbc.com) 36

A new study shows that increases in extreme winter weather in parts of the US are linked to accelerated warming of the Arctic. From a report: The scientists found that heating in the region ultimately disturbed the circular pattern of winds known as the polar vortex. This allowed colder winter weather to flow down to the US, notably in the Texas cold wave in February. The authors say that warming will see more cold winters in some locations. Over the past four decades, satellite records have shown how increasing global temperatures have had a profound effect on the Arctic.

Warming in the region is far more pronounced than in the rest of the world, and has caused a rapid shrinkage of summer sea ice. Scientists have long been concerned about the implications of this amplification of global change for the rest of the planet. This new study indicates that the warming in the Arctic is having a significant impact on winter weather in both North America and East Asia. The researchers detail a complex meteorological chain that connects this warmer region to a rotating pattern of cold air known as the polar vortex. The authors show that the melting of ice in the Barents and Kara seas leads to increased snowfall over Siberia and a transfer of excess energy that impacts the swirling winds in the stratosphere above the North Pole. The heat ultimately causes a stretching of the vortex which then enables extremely cold weather to flow down to the US. There has been an increase in these stretching events since satellite observations began in 1979. The scientists believe this vortex stretching process led to the deadly Texas cold wave in February this year.

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Arctic Warming Linked To Colder Winters

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  • All of Texas is gonna declare Global Warming a hoax because they had snow and couldn't cope.

    • by fahrbot-bot ( 874524 ) on Friday September 03, 2021 @05:47PM (#61760959)

      All of Texas is gonna declare Global Warming a hoax because they had snow and couldn't cope.

      They'll pass a law allowing people to sue anyone for $10,000 who doesn't declare Global Warming a hoax and anyone who helps anyone not declare ...

    • by tlhIngan ( 30335 )

      Lots of people claim that - it's why the term "global warming" is deprecated over the more correct "climate change".

      Because let's say it warms 5C. That doesn't mean bitterly cold -20C winters get a little more balmy at -15C, or that 30C summers get blistering hot at 35C. No, that 5C rise in average temperatures means the extremes get larger - the winters might hit -30C or -35C, while summers go 35C to 40C or more.

      That's why the terms changed - it doesn't shift all the temperatures up, it just makes it wilde

      • Lots of people claim that - it's why the term "global warming" is deprecated over the more correct "climate change".

        One nit to pick.
        Global Warming is completely accurate.
        Climate Change is the consequence of Global Warming.
        One is not more correct than the other.
        The PR focus has switched to Climate Change, because it better describes the danger of Global Warming.

    • They're not far away from sacrificing virgins to the Snow Gods.
  • Warmer winters (Score:1, Insightful)

    by rsilvergin ( 8596651 )
    Warmer winters are also linked to climate change. Either way, more money is needed to combat the problem. Climate change is like covid: normal people are tired of hearing about it. Just live your life normally. You are going to die of heart disease most likely, not covid or climate change.
    • Comment removed (Score:5, Insightful)

      by account_deleted ( 4530225 ) on Friday September 03, 2021 @05:41PM (#61760933)
      Comment removed based on user account deletion
      • Re: (Score:2, Insightful)

        by roskakori ( 447739 )

        A lot of normal people have children and would like to see us not fuck the world up for them.

        Having children is one of the best ways to ensure the world gets fucked up. The will exponentially produce carbon dioxide and, if living in rich western countries, will consume insane amounts all kinds of resources.

        And with a high probability they will continue to do so even after your death and when you stopped doing so yourself.

    • by MrL0G1C ( 867445 )

      What you are basically saying is that you are a cunt and fuck everyone in the future, not your problem.

  • If the same weather system hit them 60 years ago, They would have -30F temps. There is no real cold air left in the Arctic.
  • Wait a minute. Was this study reported by The Babylon Bee? I am still not sure if this article is a spoof or not. Of course global warming would cause colder winters in a Republican state.
  • Some places will see warmer winters, some will see colder winters, where before it was the opposite.

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