In case you missed it: MIT ClimateGate Debate Video, Dec 10, 2009
[2 hours long. If your time is limited, skip to the 8 min mark and watch a revealing 10-minute segment where alarmist scientist Kerry83 months and counting… | 100 months to save the world | Andrew Simms | guardian.co.uk
Emanuel gives his perspective, followed by climate realist Dick Lindzen]
Now, with just 83 months to go before it is no longer "likely", to use the IPCC definition of climate change risk, that we will stay below the critical 2 degree temperature rise, our options are limited.Is there any evidence? « JoNova
The all important question that rises above and before ALL other questions is the one of evidence.
Is there any evidence that carbon dioxide causes major warming?
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IPCC2007 did not consider the null hypothesis -- the possibility that modeling reliable data could reveal no temperature change at all. Readers of Tom's blog -- I present -- a peer reviewed null hypothesis -- and this means, alone, that IPCC2007 should not be relied upon for making policy decisions. Period. This null hypoothesis was developed as an ACCIDENT in a study of ozone depletion by the University of Waterloo, Ontario. Below is an excerpt from the press release of the college:
Study shows CFCs, cosmic rays major culprits for global warming
Insciences Orgqanisation [on line]
WATERLOO, Ont. (Monday, Dec. 21, 2009) - Cosmic rays and chlorofluorocarbons (CFCs), both already implicated in depleting the Earth's ozone layer, are also responsible for changes in the global climate, a University of Waterloo scientist reports in a new peer-reviewed paper.
In his paper, Qing-Bin Lu, a professor of physics and astronomy, shows how CFCs - compounds once widely used as refrigerants - and cosmic rays - energy particles originating in outer space - are mostly to blame for climate change, rather than carbon dioxide (CO2) emissions. His paper, derived from observations of satellite, ground-based and balloon measurements as well as an innovative use of an established mechanism, was published online in the prestigious journal Physics Reports.
"My findings do not agree with the climate models that conventionally thought that greenhouse gases, mainly CO2, are the major culprits for the global warming seen in the late 20th century," Lu said. "Instead, the observed data show that CFCs conspiring with cosmic rays most likely caused both the Antarctic ozone hole and global warming. These findings are totally unexpected and striking, as I was focused on studying the mechanism for the formation of the ozone hole, rather than global warming."
His conclusions are based on observations that from 1950 up to now, the climate in the Arctic and Antarctic atmospheres has been completely controlled by CFCs and cosmic rays, with no CO2 impact.
"Most remarkably, the total amount of CFCs, ozone-depleting molecules that are well-known greenhouse gases, has decreased around 2000," Lu said. "Correspondingly, the global surface temperature has also dropped. In striking contrast, the CO2 level has kept rising since 1850 and now is at its largest growth rate."
In his research, Lu discovers that while there was global warming from 1950 to 2000, there has been global cooling since 2002. The cooling trend will continue for the next 50 years, according to his new research observations.
As well, there is no solid evidence that the global warming from 1950 to 2000 was due to CO2. Instead, Lu notes, it was probably due to CFCs conspiring with cosmic rays. And from 1850 to 1950, the recorded CO2 level increased significantly because of the industrial revolution, while the global temperature kept nearly constant or only rose by about 0.1 C.
The paper, published Dec. 3 in Physics Reports, is available online at: dx.doi.org/10.1016/j.physrep.2009.12.002.
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