The IPCC flip flop on year 2100 temperature projections

Andrew Montford at Bishop Hill recently posted links to the AR5 second order draft materials and comments dated March 28th, 2013. With those available it allows us to begin constructing…

IPCC on acid – if they are virtually certain about ocean acidification, why does X-prize offer a reward for designing a proper ocean pH meter?

The IPCC writes in the “leaked” SPM It is very likely that oceanic uptake of anthropogenic CO2 results in acidification of the ocean. The pH 44 (see 7) of seawater…

Access: The "leaked" IPCC AR5 draft Summary for Policymakers

For weeks, this document has been put in the hands of most every journalist that writes about climate issues, and many articles have been written about its contents. Given that…

IPCC to Once Again Illustrate Climate Model Failings in AR5 Summary for Policymakers

The IPCC appears to be ready to make the same presentation of climate model failures as they have in past reports. Figure SPM.5 from the leaked draft of the Summary…

Excerpts from the leaked AR5 Summary for Policy Makers

I’ve been given a copy of the “leaked” AR5 SPM, which has been widely circulated and cited in advance in the MSM, but I’ve just now been able to get…

The state of climate science: 'fluxed up'

Science not settled, still in a state of flux – IPCC AR5 in disarray. It is looking like my single word quote in Rolling Stone “stillborn”, will be accurate. The…

The bottom falls out of major US newspaper coverage of climate

From Dr. Roger Pielke Jr’s Twitter feed: http://twitter.com/RogerPielkeJr/status/375310167916560385 One graph says it all, especially after I annotated it for climate news spike events.

Lomborg: New York Times environmental journalist Justin Gillis is wrong

Guest essay by Bjørn Lomborg Justin Gillis tells NPR how much sea levels will rise: “experts believe sea levels will rise at least 3 feet in the next century, and…

IPCC throws Mann's Hockey Stick under the bus?

While the media circulates the talking points pre-release “leaked draft” of IPCC’s AR5 amongst themselves, there are a few nuggets of interest coming out here and there we can write…

When somebody hits you with that new 'IPCC is 95% certain' talking point on global warming, show them this

People send me stuff. The IPCC has announced (via a “leak” campaign only to selected media outlets, such as Reuters, NYT, WaPo) that they are now 95% certain. From Reuters:…

IPCC caught out with an old, known, and uncorrected error pending their new AR5 report

UPDATE: 11:15AM PDT 8/20/13 The IPCC reads WUWT, and directly responds below – Anthony Spot the error. The IPCC can’t. Story submitted to WUWT by Tony Thomas Leaked reports of…

The IPCC has a real pack of trouble on its hands

By Paul C. “Chip” Knappenberger and Patrick J. Michaels The United Nations Intergovernmental Panel on Climate Change (IPCC) is in the midst of finishing its Fifth Assessment Report (AR5) on…

IPCC's AR5 Frankenscience – bringing proxies back from the dead

Josh writes: Steve McIntyre has a hilarious post on the desperate measures needed to get some non peer reviewed papers into the IPCC’s AR5. I am not sure where the phrase…

Michael Mann says climate models cannot explain the Medieval Warming Period – I say they can't even explain the present

Ice core data shows CO2 levels changed less than 10 parts per million from 1600-1800 during the MWP. From the Hockey Schtick:  A new paper from Schurer et al (with Mann…

UV shift in the leaked IPCC report: more inversion of the scientific method

Guest post by Alec Rawls A Fox News story on the leaked draft of AR5 got big attention through the Drudge Report the other week. Fox reporter Maxim Lott begins…

BREAKING: an encouraging admission of lower climate sensitivity by a 'hockey team' scientist, along with new problems for the IPCC

UPDATE: Annan now suggests the IPCC “is in a bit of a pickle”, see below. UPDATE2: Title has been changed to reflect Annan’s new essay, suggesting lying for political purposes…

The 'good IT fairy' follows the 'Secret Santa' IPCC AR5 leak

People send me stuff. Yesterday in the major WUWT story More IPCC AR5: THE SECRET SANTA LEAK  Donna asked: If anyone has the technical skill to make all of this data…

Josh on the IPCC AR5 leak #2

Leak #2 shows it is no longer a grey area… 

More IPCC AR5: THE SECRET SANTA LEAK

Guest post by Donna Laframboise Thanks to a whistleblower, draft versions of most chapters of the IPCC’s upcoming report are now in the public domain. Among the new revelations: the…

AR5 Chapter 11; Hiding the Decline (Part II)

Guest post by David M. Hoffer In my first two articles on the leaked AR5 Chapter 11 (near-term projections) I looked at the caveats with which the IPCC is now…

IPCC AR5 Chapter 11 – Maintaining the Spin

Guest post by David M. Hoffer In my first article on the leaked AR5 Chapter 11 draft, I focused on the extraordinary lengths to which the IPCC has gone to…

IPCC Chapter 11 – Bankruptcy Protection

Guest post by David M. Hoffer IPCC reports AR1 through 4 were published in relative obscurity. ClimateGate and the emergence of the blogosphere as the primary forum for debate of…

Joe Romm demonstrates himself to be an angry know-nothing in his attack on Matt Ridley’s WSJ essay – Ridley responds

Guest post by Matt Ridley Joe Romm of ThinkProgress described my Wall Street Journal op-ed as: riddled with basic math and science errors Yet he fails to find a single…

Haigh Anxiety: a psycho-comedy of errors

Guest post by Alec Rawls In an interview with NewScientist magazine, Imperial College professor of atmospheric physics Joanna Haigh scoffs at the idea that late 20th century warming could have…