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Re: [Phys-l] The Cause of Global Warming. What's the Proof thehypothysises and models are right?

It's the trend that's important. The trend is that the north polar ice cap is retreating at about 9% per decade.

The evidence for global warming is now overwhelming. We ignore it at our peril.

Mark


-----Original Message-----
From: phys-l-bounces@carnot.physics.buffalo.edu on behalf of Stefan Jeglinski
Sent: Sun 5/20/2007 9:29 AM
To: Forum for Physics Educators
Subject: Re: [Phys-l] The Cause of Global Warming. What's the Proof thehypothysises and models are right?

These are open source images from NASA. Note that they were taken
with microwave sensors, so that they were able to see through the
cloud cover. They are part of a very long data set that was
obtained from a number of satellites.

Note also that they are montages, in a sense - the land masses are
not real in the respect that they are not included in the presented
data stream, only as a reference. I don't know how one would find
data that is closer to the "raw images". I doubt it is available to
the hobbyist.

Surely the Greenland ice cap is retreating as well. Granted this
topic's was presented as sea ice alone, but it would have been
interesting to see that big white spot on Greenland change too. I
haven't googled yet, anyone know if similar animations exist for
Greenland?


Stefan Jeglinski
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