On Sun, 13 Jan 2008 20:55:13 -0500, Bob Noel
wrote:

In article ,
"Roger (K8RI)" wrote:

According to ice cores a major portion of the last warming took about
one *decade* and not hundreds of years and that was without our
help.:-))

Did the program indicate the cause the last warming? If so, what
was it?

As I recall it's still a mystery. It was nothing like what they were
expecting to find. Unfortunately some one pressed the erase button on
the DVR and I can't go back and look at it. It should be on again. It
was the National Geographic HD channel. Impressive in wide screen,
high definition. IIRC they had two, one hour programs back to back.

Interesting thing is most predictions are based on "things at present"
but the Greenland glaciers are rapidly accelerating their movement.
Like the Ross Ice Shelf in Antarctica they could decide to let go.
The big difference? The Ross ice shelf was already floating, but even
at their fastest it should take the glaciers at least a few years to
slide off the land mass

With the polar albedo(sp?) changin so rapidly the temperature changes
within and near the Artic Circle are much greater (and faster) than
the rest of the world is seeing..

Roger (K8RI)