Global warming happening to fast, to fast they say. .... but. .

Discussion in 'Environment' started by bear513, May 1, 2018.

  1. bear513
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    bear513 Diamond Member

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    World's biggest lake drys up in only 200 years..

    It's soooooo fun to use science against the AGW cult :)


    Scientists discover Sahara Desert contained the world’s largest lake named Mega Chad | Daily Mail Online


    Scientists discover Sahara Desert contained the world's largest lake named Mega Chad until it evaporated in just a few hundred years


    • Mega Chad covered 139,000 sq miles of Central Africa but rapidly shrunk
    • Researchers found that the change took place in just a few hundred years
    • Dust from dried-up lake blows across the Atlantic to fertilise the Amazon
    • Lake now 137 sq miles, crossing into Chad, Niger, Nigeria and Cameroon
    An enormous lake called Mega Chad in what is now the Sahara desert took just a couple of hundred years to shrink to a fraction of its size, British scientists have found.

    A reconstructed lake level history for the ancient Lake Mega-Chad, once the largest lake in Africa, suggests that a North African humid period, with increased precipitation in the Sahara region, ended abruptly around 5,000 years ago, and that the lake’s Bodélé basin, now a large source of atmospheric dust, may not have dried out until around 1,000 years ago,' the team wrote.

    But the researchers' discovery shows this fertilisation could only have happened 1,000 years ago – leaving a riddle as to how the jungle received vital nutrients before then.

    The researchers found that the change took place in just a few hundred years – much more quickly than previously considered.
     
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  2. skookerasbil
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    skookerasbil Platinum Member

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    = we don't know dick about the future climate!

    Duh

    Good post
     
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  3. tyroneweaver
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    tyroneweaver Gold Member

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    A lot of Sugarbeet replanting in this area cuz first planting got froze out;
    Some spud replants up in Oregon way
     
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  4. bear513
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    bear513 Diamond Member

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    I posted stuff before on how the great Sahara went from tropical to dry in a blink of an eye...this is getting more interesting , what caused it?
     
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  5. Crick
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    Crick Gold Member

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    Lake TChad (Chad) today
    upload_2018-5-2_6-46-8.png

    This isn't a lake. It's a wetspot on the ground. The volume of water that the original lake contained was minimal and, as can be seen, it is drained by multiple rivers.
    [​IMG]

    I also find it had to believe that even the small blue area, NW of N;Djamena, is less than one-thousandth the area of the crosshatched area representing the original lake. Google, for instance, reports iLake Chad's current area as 521 square miles (~4 times the area you give), though a lake this shallow will vary significantly with the season, and the topography of the area wouldn't seem to provide a definitive boundary.

    And your statement implying that the entire Sahara dried up and blew away in a few hundred years, is deceptive in the extreme. Even at its largest extent, Lake Chad made up only a tiny fraction of the area of the Sahara Desert. The Sahara occupies an area of 3.552 million square miles, 26 times the area of Mega Chad.
     
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    Last edited: May 2, 2018
  6. Old Rocks
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    Old Rocks Diamond Member

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    The same thing that caused the drying of Lake Bonneville and the huge lakes in Oregon. A change in climate. Over a period of thousands of years as the Milankovic Cycles entered an interglacial period.
     
  7. CrusaderFrank
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    CrusaderFrank Diamond Member

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    This pushes back the age of the internal combustion engine by 1,000 years
     
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  8. CrusaderFrank
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    CrusaderFrank Diamond Member

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    In the unread OP, it stated that the change occurred in 200 years
     
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  9. bear513
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    bear513 Diamond Member

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    This happened in 200 years, ya know " it happened to fast"
     
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  10. CrusaderFrank
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    CrusaderFrank Diamond Member

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    Who knew that Neanderthals had such massive carbon footprints
     

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