Re: NANFA-- Want a really scary scenario?

Brian Haas (
Sun, 25 Aug 2002 18:59:19 -0500

Moon, were you a science teacher at one point in your life?


Travis Haas
Hazel Green, WI

At 05:07 PM 8/25/02 EDT, Moon wrote:
>Most climate models main flaw is the fact that humans are so short lived.
>Earths natural state is much warmer than it is now, to us it's seems warm
>compared to the most recent ice age but go back just few million years and
>the earth was a much warmer place with very little in the way of ice caps
>much higher sea level. Mostly short cold periods are separated by long
>periods of very warm conditions. Even during the so called reign of the
>dinosaurs there were short glacial periods every few million years. The most
>believable theory is ocean currents, continental drift, and calm periods of
>volcanism are the main reason for ice ages. As the sun ages it also gets
>warmer. The Earth is doomed to get warmer eventually ending up much like
>Venus, hopefully many million years from now, the last estimate I have seen
>was at least one billion before the oceans boils away. Many factors control
>the earths climate most are positive or negative feed back type effects that
>will keep the earth cool enough for life for a long time. the last time
>effects failed was about 700 million years ago when it is thought the entire
>earth was covered by ice. Oddly that was when animal life as we know it
>appeared so we may owe our very existence to the earth almost becoming
>in a permanent frozen state. It is thought that a huge upswing in volcanic
>activity was what saved the earth from being a glistening white snow ball
>forever. So much heat was reflected back into space that without a
>build up a greenhouse gasses the earth would still be a snow ball to this
>day. Not long after the snow ball earth the polar caps disappeared
>coming and going again after a few dozen million years but never covering
>oceans again.
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