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User Name Thread Name Subject Posted
GUEST,KP BS: Where's the Global Warming (1541* d) RE: BS: Where's the Global Warming 21 Dec 09


Actually, I find the methane situation rather more scary than the CO2 one. We know that:

Methane is at least 20 times worse as a GHG than CO2;

There are vast quantities of it locked up in clathrates and in frozen soil, so there is potential for a nasty positive feedback effect if this gets released by warming/deforestation;

Other pollution (Carbon monoxide, sulphur oxides) causes methane to persist longer in the atmosphere;

There has been at least one methane induced major climate change and mass extinction
'PETM'

Also we probably don't know enough about the sources and sinks of methane.

KP


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