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

To: longnshort who wrote (312423)	11/26/2006 7:04:33 PM
From: neolib	Read Replies (2) \| Respond to of 1572942

CO2 also helps plants grow, that's good right ?? Yes, on land. IIRC, increased atmospheric CO2 is expected to increase ocean acidity, which is considered harmful to marine plant life but this is less well understood than the land use of CO2 by plants. It is quite complicated.

To: longnshort who wrote (312423)	11/26/2006 7:15:25 PM
From: RetiredNow	Respond to of 1572942

yes it does. But what if human industrialization has started to cut down so many trees and rolled back so many grasslands to build cities, all the while pumping the atmosphere with tons and tons of C02, that earth's natural ecosystem can no longer absorb the C02 as quickly as we put it into the air. Now we have an unsustainable imbalance. It's very similar to cashflows in your bank account. If you spend more than you put into your account, then eventually you will have to borrow money to keep spending. Eventually, you will be bankrupt and the bank will no longer give you any more money. The earth has the capacity to absorb and use only so much C02, at which point the balance of the earth's ecosystem starts to break down. One significant clue into whether or not we've pumped more C02 into the air than the earth can handle, is if C02 levels start to break all sorts of records from as far back as we can measure, currently about 800,000 years. The only question is are you astute enough to understand that clue, or will you go to your grave denying real evidence?