By David Stockwell writing in Quadrant Online As CO2 climate models falter and even the IPCC backs off its estimates, it just may be that a radical shift in thinking…
Tag: Climate sensitivity
Commonsense Climate Science and Forecasting after AR5
Guest Essay by Dr. Norman Page 1.The Demise of the IPCC and the CAGW Delusion. a) Overview. In the AR5 Summary for Policymakers the IPCC glossed over the developing cooling trend…
One Step Forward, Two Steps Back
Guest Post by Willis Eschenbach David Rose has posted this , from the unreleased IPCC Fifth Assessment Report (AR5): ‘ECS is likely in the range 1.5C to 4.5C… The lower…
BREAKING: IPCC AR5 report to dial back climate sensitivity
Update: the IPCC edifice is crumbling, see The state of climate science: ‘fluxed up’ See also Willis’ article One Step Forward, Two Steps Back, and Lomborg: climate models are running way too hot…
Friday Funny – Katharine Hayhoe: only YOU can control the climate!
@bkparallax @IamDonCheadle the power to change climate lies in hands of every individual on the planet, not a single gov't–or technology! — Prof. Katharine Hayhoe (@KHayhoe) August 29, 2013 With…
More low climate sensitivity
This paper A lower and more constrained estimate of climate sensitivity using updated observations and detailed radiative forcing time series from Skeie et al is now in open peer review…
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…
A low-sensitivity climate model that outperforms the Met Office's HADGEM2
Climate sensitivity is IMHO, the most important unresolved issue in climate science. A number of recent papers, including the IPCC AR5 leak, plus the recent Economist leak of a later…
Climate Sensitivity Deconstructed
Guest Post by Willis Eschenbach I haven’t commented much on my most recents posts, because of the usual reasons: a day job, and the unending lure of doing more research,…
Australian scientists take 6 degrees of global warming off the table, say it is closer to 2 degrees
From the University of Melbourne Scientists narrow global warming range Australian scientists have narrowed the predicted range of global warming through groundbreaking new research. Scientists from the University of Melbourne and Victoria…
Updated climate sensitivity estimates using aerosol-adjusted forcings and various ocean heat uptake estimates
Guest essay by Nic Lewis The Otto et al. paper has received a great deal of attention in recent days. While the paper’s estimate of transient climate response was low,…
Model Climate Sensitivity Calculated Directly From Model Results
Guest Post by Willis Eschenbach [UPDATE: Steven Mosher pointed out that I have calculated the transient climate response (TCR) rather than the equilibrium climate sensitivity (ECS). For the last half…
Why the new Otto et al climate sensitivity paper is important – it's a sea change for some IPCC authors
Yesterday, WUWT was honored to have a guest essay by co-author Nic Lewis on the new Otto et al paper that pegs Transient Climate Response (TCR) at 1.3°C along with Equilibrium…
New paper shows transient climate response less than 2°C
See also: Why the new Otto et al climate sensitivity paper is important – it’s a sea change for some IPCC authors New energy-budget-derived estimates of climate sensitivity and transient…
New paper from Otto et al and Nic lewis shows transient climate sensitivity less than 2C
UPDATE: this post has been superseded by the new guest essay from Nic Lewis which you can see here: New paper shows transient climate response less than 2°C
Claim: How the IPCC arrived at climate sensitivity of about 3 deg C instead of 1.2 deg C.
UPDATE from Girma: “My title should have been ‘How to arrive at IPCC’s climate sensitivity estimate’ instead of the original” Guest essay by Girma Orssengo, PhD 1) IPCC’s 0.2 deg…
The beginning of the end: warmists in retreat on sea level rise, climate sensitivity
The forecast: It seems there’s less chance of gloom and doom these days. For sea level rise, now a maximum of about two feet by 2100. As for climate sensitivity,…
A compilation of lower climate sensitivities, plus a new one
Still Another Low Climate Sensitivity Estimate Guest post By Patrick J. Michaels and Paul C. “Chip” Knappenberger Global Science Report is a weekly feature from the Center for the Study…
Some sense about sensitivity
Excerpts from The Register, coverage of the Nic Lewis paper. This graph below from Bishop Hill shows that it isn’t just one paper, but several now that show lower climate…
A Comparison Of The Earth's Climate Sensitivity To Changes In The Nature Of The Initial Forcing
Guest post by Bob Irvine ABSTRACT The Earth’s feedback response to warming is independent of the nature of the forcing that caused that warming. The question I intend to examine…
How well did Hansen (1988) do?
Guest Post by Ira Glickstein. The graphic from RealClimate asks “How well did Hansen et al (1988) do?” They compare actual temperature measurements through 2012 (GISTEMP and HadCRUT4) with Hansen’s…
Emergent Climate Phenomena
Guest Post by Willis Eschenbach In a recent post, I described how the El Nino/La Nina alteration operates as a giant pump. Whenever the Pacific Ocean gets too warm across…
The Revkin-Gavin debate on lower climate sensitivity
Lower climate sensitivity is getting some mainstream discussion. Last week at WUWT, we had this story: BREAKING: an encouraging admission of lower climate sensitivity by a ‘hockey team’ scientist, along…
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