On Apr 11, 6:32 pm, Eric Swanson <[EMAIL PROTECTED]> wrote:
> ...
> As I recall (and I admit to being fuzzy about it) the Earth was some 5
> or 6 C colder and the Tropics also cooled during the last Ice Age at
> LGM. While lower CO2 levels might have caused that,
A more typical figure for the global temperature during LGM is 6--8 K
colder than present (1950 CE). The tropics were definitely colder,
maybe 2 K average in New Guinea, but more noticeable in that area is
the strong variability of the temperature on centenial scales.
While the CO2 levels were certainly lower during LGM, that is surely
only one of the contributing factors.
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