Science magazine article on CO2
- Hi All,
Science for 19 September 2008 contains an article,
"Illuminating the Modern Dance of Climate and CO2".
One of the most important questions in climate science
today is what effect warming has on the ability of
natural systems to absorb atmospheric CO2. These systems
tend to moderate the warming observed for a given amount
of additional CO2 released.
The authors were able to use data from the Little Ice
Age to calculate the system response. The bad news is
that, of the six main models in use, only one falls in
the range that is verified by the Little Ice Age data,
and that model is the one that predicts the greatest
amount of warming in the 21st century. It appears that
the ability of natural systems to absorb CO2 deteriorates
faster in the presence of higher CO2 levels than had
The upshot of this is that we are probably homing in
on the most devastating levels of temperature increase
within the range that had been proposed. "The LIA data
imply that atmospheric CO2 will increase more quickly
with global warming than most models suggest."
So, maybe the best thing that could happen to the US
economy would be a total melt down. The resulting
decline in economic activity would sharply curtail
the release of CO2 in the USA, which now accounts for
about 25% of the world's total. This is a hell of a
note, but the country seems unlikely to take effective
action of its own accord.
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J.H. Crawford Carfree Cities