Earth on Fire: The Overheating Planet

Earth on Fire: The Overheating Planet

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NOTE ON POPULAR POSTS

The reason some popular posts are tagged ‘no title’ is not because they have no title—they all do—but because the old Blogger embedded the title at the top of text, and the new software does not see that. You can see the titles in capitals at the start of each snippet. (It would be nice if Blogger introduced an upgrade program that could fix this little problem.)

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Saturday, 13 June 2009

CLIMATE DAMAGE WILL LAST FOR MILLENNIA

From the American Association for the Advancement of Science: 'The idea that we are already committed to a certain amount of surface air temperature increase and sea-level rise over the coming century, even if we could immediately halt all CO2 emissions, has become well known in scientific and science policy circles. The longer-term outlook is less well understood. Eby et al. use a complex, coupled climate-carbon cycle model to investigate how long anthropogenic climate change will persist as a function of how high the concentration of atmospheric CO2 rises. They calculate how long it will take for half of the total emissions to be removed from the atmosphere, what the maximum global average sea surface temperature increase will be, and how long it will take for 80% of that sea surface thermal anomaly to decay. The results suggest that atmospheric CO2 can persist at high concentrations for several thousand years, and that sea surface temperature increases can last many times longer than that. It looks, then, like we are in this for the long haul.'