From Science A Go Go.com (11 January 2008):
New research from the University of California - San Diego challenges the generally accepted belief that substantial ice sheets could not have existed on Earth during past super-warm periods.Hmmm. Glaciers surviving a global warming period. Interesting. If those glaciers could survive past global warming (caused by natural causes) then couldn't present day glaciers survive today's global warming?The new study examines geochemical and sea level data retrieved from marine microfossils deposited on the ocean floor 91 million years ago during the Cretaceous Thermal Maximum (also known as the super-greenhouse). This extreme warming event in Earth's history raised tropical ocean temperatures to 35-37°C (95-98.6°F), about 10°C (50°F) warmer than today [my italics], thus creating an intense greenhouse climate. [...]
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