Re: Doomsday Scenario.


"Robert" <RB@..> wrote

> By the time coal becomes short, in maybe fifty years, the polar caps will
> have
> melted, the oceans will have warmed considerably and the atmosphere will
> be hot
> and steamy. We will return to conditions somewhat like those of the
> carboniferous era.

Greenland may have melted, but it is unlikely that the Antartic ice cap will
have, at least in that time frame. Antartica is so far below freezing now
(-70 to -80F at the South Pole this time of year), that all a rise in
average temperatures is likely to do is result in increased precipitation
and therefore increase the depth of the icecap, at least near the middle.

> The question arises, "HOW MUCH SUNLIGHT WILL REACH THE EARTH'S SURFACE
> THEN ?"
> Insolation has fallen by 10% in the past 20 years. How much will get
> through in
> fifty or one hundred years time?

Turn off your caps key. It makes you look like some kind of crusader.
Computer model results that I've read about predict only modest drops in
sunlight, if at all. Clouds are complex things, as is atmospheric optics.


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