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Originally Posted by jfuh  Depends on how far back you go. It is quite unlikly however that the north pole had ever been ice free in the last several mellenia or at least for as long as humans had been roaming the planet - which is the only real relevant time period to us.
So that 65 million years ago Antarctica and the artic were tropical swamps is utterly irrelevant. We don't have giant lizards roaming the planet today. |
It's not "utterly irrelevant" at all. It would be just one more way to debunk global warming as man made. And don't get the wrong idea here, I believe we are experiencing global warming, but I'm not buying into the theory that man is the primary cause. Are we polluting the earth? Absolutely we are, but what influence that has on global warming as a whole has not been proven without a reasonable doubt.