Thursday, September 18, 2008

Astronomical Influences Affect Climate More Than CO2, Say Experts

Warming and cooling cycles are more directly tied in with astronomical influences than they are with human-caused carbon dioxide (CO2) emissions, some scientists now say.

Recent observations point to a strong link between “solar variability” – or fluctuations in the sun’s radiation – and climate change on Earth, while other research sees the sun as just one of many heavenly bodies affecting global warming in the later half of the 20th century.

Contrary to what has been stated in a “Summary for Policymakers” attached to the United Nation’s International Panel on Climate Change (IPCC) report -- and in subsequent press coverage of the report -- there is scant evidence in favor of human-caused global warming, according to geologists, astrophysicists, and climatologists who have released updated studies.

An examination of warming and cooling trends over the last 400 years shows an “almost exact correlation” between all of the known climate changes that have occurred and solar energy transmitted to the Earth, while showing “no correlation at all with CO2,” Don J. Easterbrook, a geologist with Western Washington University in Bellingham, Wash.

There is data going all the way back to 1976 that show Mars has also experienced global warming. The Martian ice cap has been melting during the same time period as global warming on Earth. [snip]

“It’s practically slam dunk that we are in for about 30 years of global cooling,” he said. Not something you will read about in the media."
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