Not Settled Science After All
The scientific community seems to be having second thoughts about this "settled science" nonsense.
The last issue of SCIENCE is waffling like mad on the global warming fad, warning its readers that it may not be so settled a question. Under the headline "Another Global Warming Icon Comes Under Attack," SCIENCE writer Richard Kerr writes:
"...a group of mainstream atmospheric scientists is disputing a rising icon of global warming, and researchers are giving some ground." ...
"Robert Charlson of the University of Washington, Seattle, (is) one of three authors of a commentary published online last week in Nature Reports: Climate Change. ... he and his co-authors argue that the simulation by 14 different climate models of the warming in the 20th century is not the reassuring success IPCC claims it to be."
(IPCC is the supposed international scientific consensus document on global warming - JL).
"... In the run-up to the IPCC climate science report released last February ... 14 groups ran their models under 20th-century conditions of rising greenhouse gases. ... But the group of three atmospheric scientists ... says the close match between models and the actual warming is deceptive. The match "conveys a lot more confidence [in the models] than can be supported in actuality," says Schwartz. [....]
"Greenhouse gas changes are well known, they note, but not so the counteracting cooling of pollutant hazes, called aerosols. Aerosols cool the planet by reflecting away sunlight and increasing the reflectivity of clouds. Somehow, the three researchers say, modelers failed to draw on all the uncertainty inherent in aerosols so that the 20th-century simulations look more certain than they should." [Italics added]
What? "Somehow" they missed the biggest unknown factor in climate prediction?
Some people have had doubts for years. It's happened before.
A growing community believes that cosmic rays admitted by a brightening sun influences cloud formation and is the primary cause of global warming.
Labels: Global Warming Backtracking
posted by Michael at
6:58 AM
1 Comments:
While there is much research to be done into global warming, the one thing that is clear is the sun has had only a minimal influence on the last 30 years of global warming. A study came out just today by Mike Lockwood that concludes it's "absolutely clear that the sun is nothing to do with the recent warming". He says "This doesn't rely on models, it uses real data and it shows that all the solar trends have been going in the opposite direction for the last 20 years." This is just the latest in a series of studies (Foukal 2006, Scafetta 2006, Solanki 2005, etc) that all note a close correlation between solar activity and temperature but note that the correlation ends after 1975 when temperatures started rising while solar activity (and cosmic radiation) stayed level.
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