Monday, July 02, 2012
New paper finds fire activity was highest when CO2 levels were "safe"
A recent paper published in Geophysical Research Letters reconstructs the annual area burned in the Northern Rockies from 1626 to 2008 and finds the periods of greatest fire activity were in the early 1600's and during the period 1929-1945, both of which had "safe" levels of CO2 below 350 ppm.
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1929-45 was a period of global warming http://greenerblog.blogspot.co.uk/2009/12/what-about-warming-in-mid-20th-century.html , and, as expected, the dry forests caught fire more easily.
We are currently in an even warmer period, and so forest fires are to be expected.
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