Formerly About Advanced Micro Devices Message Board

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Politics : Formerly About Advanced Micro Devices

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To: neolib who wrote (313002)	11/28/2006 11:18:58 PM
From: bentway	Read Replies (1) of 1572604

I saw a program on extinctions in the fossil record that laid the blame on some past extinctions on global warming caused by massive volcanic releases of CO2. This by itself didn't cause the extinction, but the warming caused the oxygen level in the oceans to drop precipitously. Once this had happened, a type of bacteria that only live near very deep ocean volcanic vents without oxygen multiplied unchecked and filled the oceans. These bacteria put out hydrogen sulfide gas as a waste product. The gases from trillions of these bacteria over the oceans migrated to the landmasses and caused extinctions by gassing animal life. The earth came back into balance over a period of millions of years, with the survivors evolving into the life forms we know today.

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