Anonymous
Anonymous asked in EnvironmentGlobal Warming · 1 decade ago

Which lasted longer - the mid-20th century cooling period or the late-20th century warming period?

Even if you include the last ten years since the "warmest year on record" that would bring the warming period to 30 years..... How does that compare to the mid-20th century cooling period?

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  • NoFlox
    Lv 4
    1 decade ago
    Favorite Answer

    The cooling period was from 1940 to about 1979 (39 YEARS LONG)

    The warming period was from 1980 to 1998 (18 YEARS LONG), even if we count it from 1980 to 2008 (28 YEARS LONG),

    Cooling period is longer.

    SO, THAT'S YOUR ANSWER.

    But if you apply Hansen's computer models, well, only Hansen and God would know the results.

    Note on nomenclature:

    I used the word 'Cooling' as in 'lack of warming'.

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  • 1 decade ago

    I think perhaps we should address how the cooling data was taken first before we make any assumptions....

    From 1942 to August 1945 about 80 per cent of temperature records at sea were by US ships, which typically sampled water piped into hulls that can be heated by warmth of engines.

    From late 1945-49, about half of a smaller batch of measurements were made by British ships, which typically scooped up water in buckets. Water in buckets often cools before thermometers can be put in, especially in winter.

    This can seriously skew results and averages,ergo perhaps there was neither a cooling or a warming.

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  • JimZ
    Lv 7
    1 decade ago

    I think the Pacific Decadal Oscillation is 30 years so they essentially cancel each other out. They are roughly equal in duration

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  • Andrew
    Lv 7
    1 decade ago

    It all depends on who was promoting it and who was PR. El Gore can make warming period last for centuries, just by using his tongue. Who was promoting cooling period?

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  • Anonymous
    1 decade ago

    cooling period was longer.

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  • 1 decade ago

    You know the answer and you don't need us to tell you what you already know! Keep it up Randel!

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