Oh dear. The house of carbon cards continues to fall…
The campaign to force people to accept that “the debate is over” and that man-made CO2 emissions are driving climate change is in deep trouble, with another top global warming advocate – rocket scientist and carbon accounting expert Dr. Richard Evans – completely reversing his position.
Evans was a consultant to the Australian Greenhouse Office from 1999 to 2005 and he wrote the carbon accounting model (FullCAM) that measures Australia’s compliance with the Kyoto Protocol.
In an article for The Australian newspaper, Evans highlights why he was so keen to jump on board the man-made explanation without there being any clear conclusion as to what was driving temperature increases in the period from the end of the 70’s to 1998.
“The evidence was not conclusive, but why wait until we were certain when it appeared we needed to act quickly?” writes Evans. “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,” he concludes.
Evans points out that the “greenhouse signature” that would indicate CO2 emissions are driving temperature increases – “a hot spot about 10km up in the atmosphere over the tropics” – which would be evident if climate change was man-made, is simply non-existent.
“If there is no hot spot then an increased greenhouse effect is not the cause of global warming. So we know for sure that carbon emissions are not a significant cause of the global warming,” he writes.
Read the rest of the article at Prisonplanet.
Added to the Global Warming? page.