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  • In the Financial Times...

    Gulf Stream at slowest pace for 1,000 years

    Research published this week suggests climate change is slowing the ocean current, which carries warm water to Europe, more dramatically than expected. Using sediment data and temperature records to map historical trends, a study in Nature Geoscience found the Gulf Stream system, also known as the Atlantic Meridional Overturning Circulation (Amoc), was travelling at its slowest rate in the last millennium.

    “This is highly likely to be caused by our greenhouse gas emissions because there is no other plausible explanation for this slowdown,” said Stefan Rahmstorf, one of the authors and head of earth system analysis at the Potsdam Institute for Climate Impact Research. “It is exactly what the climate models have been predicting for decades.”

    The Gulf Stream is a huge ocean current that carries warm water from the tropics up the east coast of North America. The current — which carries more than 100 times the flow of the Amazon River — then cools and sinks around Greenland, carrying cooler water back south deep in the ocean.

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    • So I would guess that means the water will have more time to cool by the time it reaches the far North Atlantic, therefore would have less of a moderating effect on temperatures in the UK, Iceland, Western Europe etc.?

      Comment


      • Originally posted by DrJay View Post
        So I would guess that means the water will have more time to cool by the time it reaches the far North Atlantic, therefore would have less of a moderating effect on temperatures in the UK, Iceland, Western Europe etc.?
        The Gulf Stream that helps warm the UK and northwest Europe is at its weakest in over 1,000 years and could lead to more "extreme and intense" winters, according to researchers.

        They say the slowdown observed in the 20th century is "unprecedented" and likely connected to climate change.

        The Gulf Stream is part of a larger "conveyer belt" of ocean currents known as Atlantic Meridional Overturning Circulation (AMOC) and carries warm water from the tip of Florida towards Europe.

        Its effect ensures Britain has relatively mild winters and without it experts believe temperatures would be around 5C cooler.


        https://news.sky.com/story/weakest-g...study-12228956

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        • Northern Europe experienced something like this in the 16th Century Little Ice Age; took a hundred years to return to recent "normal".

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          • Don't know if this is a weather issue and some of this seems to belong in the Darwin thread but apparently Colorado is having a bad avalanche year.

            Colorado has seen six avalanche fatalities just this month for a total of ten this season, more than any other state according to the CAIC count.

            https://www.cnn.com/2021/02/15/us/co...rnd/index.html

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            • Wyoming Coal Country Pivots, Reluctantly, to Wind Farms


              The tiny town of Rawlins will soon be home to one of the nation’s largest wind farms. But pride in the fossil fuel past remains a powerful force.


              https://www.nytimes.com/2021/03/03/c...wind-farm.html

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              • We're supposed to get 16" of snow between midnight Thursday and Sunday afternoon. Haven't had that much in one storm in a number of years. College basketball, movies, books, soup, chili.

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                • Denver and Boulder supposed to get 28 inches of snow with this storm Friday through Monday morning

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                  • Zowie!

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                    • February 2021 was the coldest February in the USA since 1989.

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                      • We're down to 11" of snow forecast as the storm track shifts a little north. Boulder to get 30" Friday p.m. thru Monday a.m. per current forecast. This will be a wet, heavy spring snow. Plenty of 1960s-era ranchers with low-angled roofs in Boulder. Could see any number of roof collapses.

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                        • Headline - 6 months of summer could be the norm by 2100, study finds

                          https://www.livescience.com/six-mont...mers-2100.html

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                          • Originally posted by tandfman View Post
                            6 months of summer could be the norm by 2100, study finds
                            That will be a relief. I have 8 months of it now!

                            Comment


                            • meanwhile, on the ocean floor....

                              The surprise catch of seafood trawling: Massive greenhouse gas emissions
                              A new study shows that one industrial fishing method emits as much carbon dioxide annually as the aviation industry.



                              https://www.vox.com/22335364/climate...rbon-footprint

                              Comment


                              • Originally posted by gh View Post
                                meanwhile, on the ocean floor....

                                The surprise catch of seafood trawling: Massive greenhouse gas emissions
                                A new study shows that one industrial fishing method emits as much carbon dioxide annually as the aviation industry.
                                Interesting. So is that more or fewer carbon emissions than cow farts??

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