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Politics : Formerly About Advanced Micro Devices
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To: AK2004 who wrote (210190)11/2/2004 3:55:28 PM
From: combjelly  Read Replies (1) of 1577225
 
"there is a backfeed that preserves equilibrium that is co2 have positive effect on plant life. "

Yes. But there are a lot of loops in the system. One big carbon sink is in bogs. Another is in the ocean bottom water. The drying of the bogs is likely on of the factors that drives interglacial periods to warm periods. Their drying, with their subsequent oxidation of their carbon load, can occur in a short period of time, geologically speaking. While the warmer weather and higher CO2 can stimulate both land plants and the phytoplankton in the oceans to soak up some of that CO2, it can't take it all. A limiting factor are trace elements like iron. For example, even at current CO2 levels, the oceans can support a lot more phytoplankton than it does, especially in the polar latitudes. But there isn't sufficient iron for them to make chlorophyll. There was an experiment some years ago where they dump a lot of ferric chloride near Antarctica (IIRC) and that stimulated a huge bloom...
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