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      07-21-2008, 10:22 AM   #1
ganeil
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Al Gore call your office

Another global warming alarmist turns skeptical.

No smoking hot spot

David Evans | July 18, 2008

I DEVOTED six years to carbon accounting, building models for the Australian Greenhouse Office. I am the rocket scientist who wrote the carbon accounting model (FullCAM) that measures Australia's compliance with the Kyoto Protocol, in the land use change and forestry sector.

FullCAM models carbon flows in plants, mulch, debris, soils and agricultural products, using inputs such as climate data, plant physiology and satellite data. I've been following the global warming debate closely for years.

When I started that job in 1999 the evidence that carbon emissions caused global warming seemed pretty good: CO2 is a greenhouse gas, the old ice core data, no other suspects.

The evidence was not conclusive, but why wait until we were certain when it appeared we needed to act quickly? Soon government and the scientific community were working together and lots of science research jobs were created. We scientists had political support, the ear of government, big budgets, and we felt fairly important and useful (well, I did anyway). It was great. We were working to save the planet.

But since 1999 new evidence has seriously weakened the case that carbon emissions are the main cause of global warming, and by 2007 the evidence was pretty conclusive that carbon played only a minor role and was not the main cause of the recent global warming. As Lord Keynes famously said, "When the facts change, I change my mind. What do you do, sir?"

....
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      07-21-2008, 11:15 AM   #2
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A look at David Evans' methodology:


"The Australian continues to display its contempt for science, scientists and the scientific method. They've published this piece of AGW denial by David Evans. Last time I looked at Evans he was saying that new evidence since 1999 had changed his mind about global warming, with this new evidence including the fact that the world had cooled from 1940 to 1975. Apparently this was too silly even for the Australian, so he now offers us four alleged facts.
1 The greenhouse signature is missing. We have been looking and measuring for years, and cannot find it.

Each possible cause of global warming has a different pattern of where in the planet the warming occurs first and the most. The signature of an increased greenhouse effect is a hot spot about 10km up in the atmosphere over the tropics.
This couldn't be more wrong."

http://scienceblogs.com/deltoid/2008...science_16.php

Recent Drudge internet traffic has forced the American Physical Society (APS) to recently restate their position:
APS Climate Change Statement
APS Position Remains Unchanged

The American Physical Society reaffirms the following position on climate change, adopted by its governing body, the APS Council, on November 18, 2007:

"Emissions of greenhouse gases from human activities are changing the atmosphere in ways that affect the Earth's climate."
www.aps.org
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