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Wednesday, August 21, 2013

Leaked Copy of U.N. Climate Change Report Shows Agency Struggling To Explain Why Global Warming Has Been Non-Existant Over Last 15 Years


An unreleased draft of the U.N.’s next major climate report reportedly states that scientists are more certain than ever that man’s actions are warming the planet — even as the report struggles to explain a slow-down in warming that climate skeptics have seized upon. 
Global surface temperatures rose rapidly during the 70s, but have been relatively flat over the past decade and a half, according to data from the U.K.’s weather-watching Met Office. Climate skeptics have spent months debating the weather pattern, some citing it as evidence that global warming itself has decelerated or even stopped. 
“The absence of any significant change in the global annual average temperature over the past 16 years has become one of the most discussed topics in climate science,” wrote David Whitehouse of the Global Warming Policy Foundation in June. “It has certainly focused the debate about the relative importance of greenhouse gas forcing of the climate versus natural variability.” 
A draft of the upcoming AR5 report by the Intergovernmental Panel on Climate Change (IPCC), which is set for final release in Oct. 2014 and used by governments around the world, offers a variety of explanations for the mystery, Reuters reported, from ocean storage of heat to volcanoes. 
“Scientists believe causes could include: greater-than-expected quantities of ash from volcanoes, which dims sunlight; a decline in heat from the sun during a current 11-year solar cycle; more heat being absorbed by the deep oceans; or the possibility that the climate may be less sensitive than expected to a build-up of carbon dioxide,” explained Reuters environment correspondent Alister Doyle. 
The draft expresses “medium confidence” that the slowing in global warming “due in roughly equal measure” to those factors, Reuters said.
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posted by Pastorius at permanent link#

1 Comments:

Anonymous Anonymous said...

Just because it's non-existent doesn't mean it isn't true. After all it's "settled science."

Wednesday, August 21, 2013 12:01:00 pm  

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