Global Warming Traced to Volcanoes
Not by Fire but by Ice
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Discover What Killed the Dinosaurs . . . and Why it Could Soon Kill Us
28 Apr 07
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global warming traced to volcanoes
Apr 07 - Scientists believe they have solved the mystery of what caused
the most rapid global warming in known geologic history, a cataclysmic
temperature spike of more than 9 degrees Fahrenheit some 55 million
years ago driven by concentrations of greenhouse gases hundreds of times
greater than today. (No, I think the
warming was driven by underwater volcanism. See below.)
culprit, the researchers reported Thursday in the journal Science, was a
series of volcanic eruptions that set off a chain reaction releasing
massive quantities of carbon into the atmosphere.
eruptions occurred on the rift between two continental plates as
event, known as the Paleocene-Eocene Thermal Maximum, was discovered in
the early 1990s.
ancient warming was sparked by the release of 1,500 to 4,000 gigatons of
carbon over several thousand years, scientists estimate.
think they’ve got it backwards, as you know if you’ve read “Not by
summary of the article in Science magazine said the warming was “marked
think this ocean warming released the CO2, and I think the same thing is
not global warming, it’s ocean warming, caused by underwater
magazine, 27 April 2007
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