Andrew Crystall wrote:
> But the RATE of change and in particular the erratic behavoir > of certain sea currents - not to mention the very real damage > to the ozone layer - has convinced most serious climate > scientists that Human acitivity is a factor.
From what I understand, global warming and the hole in the ozone layer don't actually have anything to do with each other. The only real link I know of is that chloroflourocarbons can contribute to both.
Or they may even counter each other to some extent:
<quote>
Astronomy Picture of the Day
2002 October 22
Explanation: As expected, the ozone hole near Earth's South Pole is back again this year. This time, however, it's smaller than the past two years, and has an unusual double lobe structure. Ozone is important because it shields us from damaging ultraviolet sunlight. Ozone is vulnerable, though, to CFCs and halons being released into the atmosphere. International efforts to reduce the use of these damaging chemicals appear to be having a positive effect on their atmospheric abundance. ***The smaller size of the ozone hole this year, however, is attributed mostly to warmer than normal air in the surrounding stratosphere. [Link to site on global warming.]*** The above picture of the ozone hole was taken on September 24 by TOMS on board the orbiting Earth Probe satellite.
</quote>
[Emphasis added.]
-- Ronn! :)
Ronn Blankenship Instructor of Astronomy/Planetary Science University of Montevallo Montevallo, AL
Disclaimer: Unless specifically stated otherwise, any opinions contained herein are the personal opinions of the author and do not represent the official position of the University of Montevallo.
_______________________________________________ http://www.mccmedia.com/mailman/listinfo/brin-l
