Full AR5 draft leaked here, contains game-changing admission of enhanced solar forcing
Posted by Alec Rawls, 12/13/12
I participated in "expert review" of the Second Order Draft of AR5 (the next IPCC report), Working Group 1 ("The Scientific Basis"), and am now making the full draft available to the public. I believe that the leaking of this draft is entirely legal, that the taxpayer funded report is properly in the public domain under the Freedom of Information Act, and that making it available to the public is in any case protected by established legal and ethical standards, but web hosting companies are not in the business of making such determinations so interested readers are encouraged to please download copies of the report for further dissemination in case this content is removed as a possible terms-of-service violation. My reasons for leaking the report are explained below. Here are the chapters:
Summary for Policymakers
Chapter 1: Introduction
Chapter 2: Observations: Atmosphere and Surface
Chapter 3: Observations: Ocean
Chapter 4: Observations: Cryosphere
Chapter 5: Information from Paleoclimate Archives
Chapter 6: Carbon and Other Biogeochemical Cycles
Chapter 7: Clouds and Aerosols
Anthropogenic and Natural Radiative Forcing
Chapter 8 Supplement
Chapter 9: Evaluation of Climate Models
Chapter 10: Detection and Attribution of Climate Change: from Global to Regional
Chapter 11: Near-term Climate Change: Projections and Predictability
Chapter 12: Long-term Climate Change: Projections, Commitments and Irreversibility
Chapter 13: Sea Level Change
Chapter 14: Climate Phenomena and their Relevance for Future Regional Climate Change
Chapter 14 Supplement
Why leak the draft report?
By Alec Rawls (email)
The ethics of leaking tax-payer funded documents requires weighing the "public's right to know" against any harm to the public interest that may result. The press often leaks even in the face of extreme such harm, as when the New York Times published details of how the Bush administration was tracking terrorist financing with the help of the private sector Society for Worldwide Interbank Financial Telecommunication (SWIFT), causing this very successful anti-terror program to immediately collapse.
That was a bad leak, doing great harm to expose something that nobody needed to know about. With the UN's IPCC reports the calculus is reversed. UN "climate chief" Christina Figueres explains what is at stake for the public:
... we are inspiring government, private sector, and civil society to [make] the biggest transformation that they have ever undertaken. The Industrial Revolution was also a transformation, but it wasn’t a guided transformation from a centralized policy perspective. This is a centralized transformation that is taking place because governments have decided that they need to listen to science.
So may we please see this "science" on the basis of which our existing energy infrastructure is to be ripped out in favor of non-existent "green" energy? The only reason for secrecy in the first place is to enhance the UN's political control over a scientific story line that is aimed explicitly at policy makers. Thus the drafts ought to fall within the reach of the Freedom of Information Act.
The Obama administration implicitly acknowledged this when it tried to evade FOIA by setting up private "backdoor channels" for communications with the IPCC. If NCAR's Gerald Meehl (a lead author of AR5's chapter on near-term climate change), has working copies of the draft report (and he's only one of dozens of U.S. government researchers who would), then by law the draft report (now finished) should be available to the public.
The IPCC's official reason for wanting secrecy (as they explained it to Steve McIntyre in January 2012) is so that criticisms of the drafts are not spread out across the internet but get funneled through the UN's comment process. If there is any merit to that rationale it is now moot. The comment period ended November 30th so the comment process can no longer be affected by publication.
As for my personal confidentiality agreement with the IPCC, I regard that as vitiated by the systematic dishonesty of the report ("omitted variable fraud" as I called it in my FOD comments). This is a general principle of journalistic confidentiality: bad faith on one side breaks the agreement on the other. They can't ask reviewers to become complicit in their dishonesty by remaining silent about it.
Then there is the specific content of the Second Order Draft where the addition of one single sentence demands the release of the whole. That sentence is an astounding bit of honesty, a killing admission that completely undercuts the main premise and the main conclusion of the full report, revealing the fundamental dishonesty of the whole.
Lead story from the Second Order Draft: strong evidence for solar forcing beyond TSI now acknowledged by IPCC
Compared to the First Order Draft, the SOD now adds the following sentence, indicated in bold (page 7-43, lines 1-5, emphasis added):
Many empirical relationships have been reported between GCR or cosmogenic isotope archives and some aspects of the climate system (e.g., Bond et al., 2001; Dengel et al., 2009; Ram and Stolz, 1999). The forcing from changes in total solar irradiance alone does not seem to account for these observations, implying the existence of an amplifying mechanism such as the hypothesized GCR-cloud link.
We focus here on observed relationships between GCR and aerosol and cloud properties.
The Chapter 7 authors are admitting strong evidence ("many empirical relationships") for enhanced solar forcing (forcing beyond total solar irradiance, or TSI), even if they don't know what the mechanism is. This directly undercuts the main premise of the report, as stated in Chapter 8 (page 8-4, lines 54-57):
There is very high confidence that natural forcing is a small fraction of the anthropogenic forcing. In particular, over the past three decades (since 1980), robust evidence from satellite observations of the TSI and volcanic aerosols demonstrate a near-zero (–0.04 W m–2) change in the natural forcing compared to the anthropogenic AF increase of ~1.0 ± 0.3 W m–2.
The Chapter 8 authors (a different group than the Chapter 7 authors) are explicit here that their claim about natural forcing being small compared to anthropogenic forcing is based on an analysis in which the only solar forcing that is taken into account is TSI. This can be verified from the radiative forcing table on page 8-39 where the only solar variable included in the IPCC's computer models is seen to be "solar irradiance."
This analysis, where post-1980 warming gets attributed to the human release of CO2 on the grounds that it cannot be attributed to solar irradiance, cannot stand in the face of the Chapter 7 admission of substantial evidence for solar forcing beyond solar irradiance. Once the evidence for enhanced solar forcing is taken into account we can have no confidence that natural forcing is small compared to anthropogenic forcing.
The Chapter 8 premise that natural forcing is relatively small leads directly to the main conclusion of the entire report, stated in the first sentence of the Executive Summary (the very first sentence of the entire report): that advances since AR4 "further strengthen the basis for human activities being the primary driver in climate change" (p.1-2, lines 3-5). This headline conclusion is a direct descendant of the assumption that the only solar forcing is TSI, a claim that their own report no longer accepts.
The report still barely hints at the mountain of evidence for enhanced solar forcing, or the magnitude of the evidenced effect. Dozens of studies (section two here) have found between a .4 and .7 degree of correlation between solar activity and various climate indices, suggesting that solar activity "explains" in the statistical sense something like half of all past temperature change, very little of which could be explained by the very slight variation in TSI. At least the Chapter 7 team is now being explicit about what this evidence means: that some mechanism of enhanced solar forcing must be at work.
My full submitted comments (which I will post later) elaborate several important points. For instance, note that the Chapter 8 premise (page 8-4, lines 54-57) assumes that it is the change in the level of forcing since 1980, not the level of forcing, that would be causing warming. Solar activity was at historically high levels at least through the end of solar cycle 22 (1996), yet the IPCC is assuming that because this high level of solar forcing was roughly constant from 1950 until it fell off during solar cycle 23 it could not have caused post-1980 warming. In effect they are claiming that you can't heat a pot of water by turning the burner to maximum and leaving it there, that you have to keep turning the flame up to get continued warming, an un-scientific absurdity that I have been writing about for several years (most recently in my post about Isaac Held's bogus 2-box model of ocean equilibration).
The admission of strong evidence for enhanced solar forcing changes everything. The climate alarmists can't continue to claim that warming was almost entirely due to human activity over a period when solar warming effects, now acknowledged to be important, were at a maximum. The final draft of AR5 WG1 is not scheduled to be released for another year but the public needs to know now how the main premises and conclusions of the IPCC story line have been undercut by the IPCC itself.