Geological data shows that the world has been a lot colder than it is now, and that it also has been a lot warmer than it is now. I think that proves something. Which is that the whole issue is, to quote Shakespeare, "Much ado about nothing".
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frank theriault wrote:
The question isn't whether global warming is happening, but why (natural fluctuations or greenhouse effect caused by greenhouse gases, or a combo of the two).
-- graywolf http://graywolfphoto.com
"You might as well accept people as they are, you are not going to be able to change them anyway."