Daily Archives: June 19, 2011

Volcanic CO2

From time to time we hear the claim that volcanoes inject more CO2 into the atmosphere than human activity. Its typical form is exemplified by a comment at RealClimate which was (quite appropriately) consigned to the “Borehole.”


When the volcano, Mt Pinatubo, erupted in the Philippines in 1991, it spewed out more greenhouse gases into the atmosphere than the entire human race had emitted in its entire YEARS on earth.

This claim is almost as ubiquitous as it is ridiculous, and seems to be championed by Australian geologist Ian Plimer, author of the execrable book “Heaven and Earth: Global Warming, the Missing Science.” Science seems to be missing from all of Plimer’s musings on global warming.

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