re: Massive hole reopens in Antarctic sea ice

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Scientists have already admitted the estimated warming ability of CO2 was grossly over estimated. Let it go. We need higher levels to insure longevity of modern plant life.

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What specific scientists? Why is it in these conversations sources are always absent?

Either way, this is simply another red herring. Unless you are about to break open one of the greatest reversals of scientific literacy ever, we know how the science of GHG's work. Whether forecasts claim global average temps will rise X amount in Y years, Or M amount in N years, the science underlying it is not in dispute. You put more of these things in the atmosphere, you trap more heat. Not really that difficult to understand. How long the delayed fuse is, what the specific consequences are, don't have to be known 100% to acknowledge how the basic science works. To recognize what the proliferation of them into an atmosphere is going to do, all other things being equal.