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View Diary: New study forecasts mass extinction in 100 years due to Climate Change (226 comments)

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  •  I Highly Doubt (3+ / 0-)

    ...that this extinction will reach all life.  As little as 150 million years ago, the CO2 concentration in the atmosphere was over 1500 ppm, nearly four times what it is now (around when the midwest was underwater and much of what is now our domestic coal and oil supply was being deposited).  Of course, this doesn't account for our poisonous pollutants, but there's immense biomass within the ocean sediment, among other fairly well-shielded places.  And life has survived some pretty harrowing events before now.  After all, the oxygen we breathe was once a pollutant, a byproduct of still-earlier life.  We wouldn't even be the first to make our environment unfit for our own survival!

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