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It further confirms that the effect of continued increases will NOT cause much more rise in temperature. And it further supports the claim that Man is not the main culprit at all.
No, Happer confirms what other scientists have been saying, that CO2 has caused the earth to heat up one degree in the last century. What is remarkable is that the effects of this rise in temperature was greater than even the most pessimistic scientist had predicted. Happer's article came out in 2002, five years before the astonishing melt down of the North Pole in 2007.
Why was the effect so much greater than predicted?
Because of the positive feedback effects of melting of the polar ice cap.
There is no "astonishing meltdown".
Poll and Polar Ice Trends « Watts Up With That?
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