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Global Warming - It NEVER Happened Before
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Just Wondering
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Global Warming - It NEVER Happened Before
wrote:
Note that the highest CO2 concentration over the last half
million years is a bit over 300 ppm. The current concentration
is 380 ppm.
IF that is true, it's also true that the earth is far from the hottest
it's been during that same time frame. Which would seem to indicate
that CO2 concentration is not the cause of global temperature levels.
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