Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: neolib who wrote (313002)	11/28/2006 11:18:58 PM
From: bentway	Read Replies (1) \| Respond to of 1572507

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.

To: neolib who wrote (313002)	12/3/2006 2:07:53 PM
From: tejek	Respond to of 1572507

might note one important saturation mechanism which the anti-global warming, pro greenhouse crowd misses: Although CO2 is an "aerial fertilizer" for plants, and increased atmospheric concentrations of it will promote plant growth, increased temps can inhibit plant growth, and the temps cannot be a whole lot hotter than what we have now. It is worse in high humidity IIRC. Basically photosynthesis shuts down in the middle of hot humid days, so plant growth decreases. Anyone who has grown crops know this. The problem is that too many of us have drifted too far from the land. Man seems all important and all powerful. Food production in this country is more than adequate to the post of extravagance. We have become spoiled. We forget how it was when the crops failed year after year; the deprivation and hunger left in its wake. Unfortunately, we may find out what that's like again.