[AR5 Summary For Policy Makers] in a nutshell: Since we started in 1990 we were right about the Arctic, wrong about the Antarctic, wrong about the tropical troposphere, wrong about the surface, wrong about hurricanes, wrong about the Himalayas, wrong about sensitivity, clueless on clouds and useless on regional trends. And on that basis we’re 95% confident we’re right.
Comment from Ross McItrick to post at Watts Up With That, Reactions To IPCC AR5 Summary For Policy Makers, 27 Sep. 2013
The Intergovernmental Panel On Climate Change today released their SPM [Summary For Policy Markers] to their about to be released AR5 report on climate change. It is a painfully tortured attempt to keep the meme of catastrophic man made global warming alive - and the money flowing in.
The IPCC faced multiple problems with this report. Their mission is to shill for man made global warming (really - their mission statement is not to analyze climate change, but "human induced" climate change). Yet the earth hasn't warmed for the past 17 plus years despite steadily increasing human contributions to CO2 levels; every one of the climate models used by the IPCC have failed with observed temperatures now falling at or below their minimum projections, Antarctica is adding ice, not losing it; and hurricanes are down.
So how does the IPCC address these problems - a lot of tap dancing and a lot of studied ignorance, all laid over top truckloads of bull excreta. The single most glaring example - the claim of 95% confidence that global warming is occurring and that man is the cause juxtaposed with this nugget in footnote 16 of the SPM:
No best estimate for equilibrium climate sensitivity [to increases in CO2] can now be given because of a lack of agreement on values across assessed lines of evidence and studies.
In other words, as to the central thesis of climate change alarmism, the IPCC can no longer agree on whether more CO2 will increase temperature by a nominal amount, a measurable amount, or a catastrophic amount. In other words, there is nothing approaching a consensus to their 95% confidence level.
It is only downhill from there.
The IPCC explains away the 17 year hiatus in warming with a wave of its hand, saying its either volcanoes and a weak sun (yet the models do not account for either) or that the missing heat from all the new CO2 over the past fifteen years has gone into the deep ocean. Why the deep? Because the upper and mid level portions of the ocean, for which we have good data measurements via ARGO, show no appreciable warming. How heat is transferred from the surface to the deep ocean without heating the upper and middle layers of the ocean - that is a mystery. And what little data we have on deep ocean temperatures shows only 1/100th of 1 degree of heating over the past 44 years. This hypothesis - which is the last best hope of the warmies - is more than a bit weak. Yet they do not blink in raising it. Shameless.
The IPCC continues to talk about the rise of the oceans, and how this is caused by melting ice. But the truth is that is done using corrupt data. Joe D'Aleo explains here, that instead of relying on the single best measurement source - satellites - the IPCC cherry picks from tidal gauges at places where the land is subsiding. These people really should be indicted for fraud.
As Richard North states of the AR5, it is not science, "it is a political statement by a politically motivated body, made for political reasons. And if you need to know the basis of the politics, start with Rio in 1992 and Agenda 21."
And on a related note, the next time you here Obama justify destroying our energy sector in response to global warming based on a claim that the period 2002 to 2012 was the hottest on record, note two things. One, the "record" they refer to - of recorded observation - only extends back 130 years, with only the the last 50+ years being global. Two, that record has been corrupted. The claim that this most recent period is the warmest is based on tenths of degrees. And yet, the warmies in charge of our temperature records have systematically altered the raw data to make the older temperature records appear colder. For but one example, this from an essay by Jim Steele, Director emeritus Sierra Nevada Field Campus, San Francisco State University:
The warm peaks from the 1930s and 40s had been adjusted downward by 3 to 4°F and these adjustments created dubious local warming trends as seen in examples from other USHCN stations at Reading, Massachusetts and Socorro, New Mexico.
What Dr. Steele has stumbled upon is the trick Jim Hansen played on us in 2007, "homogenizing" the raw data in a way that significantly cooled the temperatures from the 1930's and 40's. Without that adjustment, the hottest decade on "record" would be the 1930's. There needs to be a reckoning for these people. The harm they are causing our nation to pay for this scam, the harm they are causing our children by inculcating in them an unquestioning belief in this junk science, it must all be paid for in the end. Bastards.