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Running AMOC with the climate

15 Jun 2022 | Science Notes

If you watched our video on The Pentagon’s Cracked Crystal Ball (and if you haven’t, great fun awaits you) you’ll know that one of the recurring elements in the alarmist bag of modeling tricks is shutting down the Gulf Stream and plunging Europe into a new ice age, all courtesy of global warming. While the Gulf Stream, or as the climate insiders prefer to say the Atlantic Meridional Overturning Circulation (AMOC), is certainly real, the idea that global warming will cause it to shut off is mere speculation. Not that there’s anything wrong with guesswork and speculation, since they’re how science progresses. Provided you then test the guesses against the data. And now, with the benefit of the longest AMOC reconstruction yet devised, scientists have determined that there has been no trend in the AMOC for the past 120 years. It sped up from 1900 to 1960, slowed down in the 1970s, sped up again, slowed down again, sped up... you get the idea.

The reconstructed 20th century AMOC index was developed by Neil Fraser and Stuart Cunningham of the Scottish Association for Marine Science, and looks like this:

When the line is going up the AMOC is strengthening, or pulling more warm air across the Atlantic to Europe. When it goes down the opposite trend happens and Europe cools. There’s a theory that says global warming will cause the Greenland ice sheet to melt, flooding the North Atlantic with fresh water, slowing down the overturning process and causing the AMOC to shut off, which will then turn Britain into Siberia. And who would believe such a thing with no supporting evidence? Well, the Pentagon for one, and all the journalists who want the world to be ending by this afternoon’s deadline for filing their stories.

Unfortunately for doom as usual, the data show that while the AMOC rises and falls, it’s no lower now than it was in 1900, it rose during the early 20th century warming, it hit a minimum during the cool early 1970s, and whatever it’s been doing since, it’s not following anyone’s script. Scratch another scare story off the list.

2 comments on “Running AMOC with the climate”

  1. Maybe they didn't see the movie,"The Day after Tomorrow ". You know, the one that shows the whole northern hemisphere thrown into an Ice Age due to the shutdown of the Golf steam.
    Fun movie by the way.
    Oh, I did get my Wednesday newsletter. Thanks

  2. Here's a snippet from the book, "Thermophobia," which explains the disconnect from reality by the Warming Alarmists:
    "[Al Gore] suggests that melting Greenland could shut down the modern thermohaline circulation. This is certainly something to keep in mind, but the Greenland glacier is far smaller than the North American glacier was at the beginning of the Younger Dryas. According to Paterson, 'Volume estimates for the Laurentide ice sheet are 26.5 x 10^6 km^3 at maximum [~24,500 BC], 17.5 x 10^6 km^3 at 11,800 B.P. [9,850 BC].' According to the National Snow & Ice Data Center (NSIDC), Antarctica contains about ten times as much ice as does Greenland. They estimate that Antarctica contains some 30 million cubic kilometers of ice. This means that Greenland must possess roughly 3 million cubic kilometers. If we take the Laurentide (North American) ice sheet volume to have been 18 million cubic kilometers at the beginning of the Younger Dryas (10,900 BC), then it would have contained six times as much ice as Greenland does today."

    So, we must ask ourselves: Can Greenland produce a sufficient quantity of stored, cold, fresh water to duplicate what scientists think created the Younger Dryas "Big Freeze?" Does Greenland possess a large area wherein a lake can form and later spill out onto the Atlantic Ocean? Given the current shape of the ice dome on Greenland, it doesn't look like it. And the dribbles of water Greenland adds to the Atlantic is nothing compared the the estimated spill from Lake Agassiz roughly 10,900 BC.

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