Nic Lewis has a new post at Climate Audit that deals with some assumptions that went into IPCC AR4’s use of a uniform prior for estimating climate sensitivity. He has…
Category: Climate sensitivity
New paper finds transient climate sensitivity to doubling of CO2 is about 1°C
A new paper published in Ecological Modelling finds climate sensitivity to doubled CO2 concentrations is significantly lower than estimates from the IPCC and climate models which “utilize uncertain historical data…
Ross McKitrick's presentation to FOS
The Friends of Science 11th annual luncheon was on May 13, 2014, featuring Dr. Ross McKitrick, at the Metropolitan Conference Centre, Calgary, Alberta. In it he says: “Climate models appear…
Climate Sensitivity and Transient Climate Response
Guest essay by Marcel Crok, Climate Dialogue Climate sensitivity is at the heart of the scientific debate on anthropogenic climate change. In the fifth assessment report of the IPCC (AR5)…
New paper finds transient climate sensitivity to CO2 is ~35% less than IPCC claims
From The Hockey Schtick: A paper under discussion for Earth System Dynamics finds the transient climate response [TCR] to CO2 is 1.3°C per doubling of CO2 levels, about 35% less…
New paper finds climate sensitivity to CO2 is lower than previously believed, strong natural variability in Southern Hemisphere
(NOTE: I’m traveling today, and thus I’m posting this article from The Hockey Schtick as it deserves attention and discussion. At 10AM EDT, an announcement about a new skeptic publication…
Ridley: IPCC & OECD reports are telling us clear as a bell that we cannot ruin the climate with CO2 unless we have a population explosion
Matt Ridley: The Richer We Get, The Greener We’ll Become The world’s climate change experts are now saying that strong growth doesn’t hurt the environment, it protects it Matt Ridley,…
Can we deduce climate sensitivity from temperature?
By Christopher Monckton of Brenchley Central to Professor Lovejoy’s paper attempting to determine climate sensitivity from recent temperature trends is the notion that in any 125-year period uninfluenced by anthropogenic…
When will climate feedbacks fully function? Not for millennia
Guest essay by Christopher Monckton of Brencheley The splendidly-titled Alberto Zaragoza Comendador, commenting on my recent posting taking apart Mr. Mann’s latest fantasia in Scientific American, was startled by my…
The Shindell climate sensitivity paper: another 'GISS miss'
There was lots of breathless anticipation last week over the Drew Shindell paper on climate sensitivity, which was embargoed until 1800GMT on Sunday (see the embargoed PR from Nature here),…
More reax to Lewis and Crok: What the IPCC Knew But Didn’t Tell Us
Climate Insensitivity: What the IPCC Knew But Didn’t Tell Us By Patrick J. Michaels and Paul C. “Chip” Knappenberger In a remarkable example of scientific malfeasance, it has become apparent…
Notes on the reax to Lewis and Crok, along with another paper looking at climate model output versus data
While the reactions to Lewis and Crok rage, from intellectually lazy trolling at Dr. Judith Curry’s shop by a trio of commenters using the “nyah, nyah, it’s not peer reviewed!” method,…
The Lewis and Crok exposition – Climate less sensitive to Carbon Dioxide than most models suggest
Full papers plus additional comments from co-author Nic Lewis follow. I have added some relevant diagrams and tables from the report, plus reproduced the foreword by Dr. Judith Curry as…
More Evidence for a Low Climate Sensitivity
By Patrick J. Michaels and Paul C. “Chip” Knappenberger We have two new entries to the long (and growing) list of papers appearing the in recent scientific literature that argue…
Assessment of Equilibrium Climate Sensitivity and Catastrophic Global Warming Potential Based on the Historical Data Record
This exercise in data analysis pins down a value of 1.8C for ECS. Guest essay by Jeff L. Introduction: If the global climate debate between skeptics and alarmists were cooked…
Josh on the certainty of climate sensitivity
Josh writes: Are we now 95% certain? Yes, we are! Hooray! Yesterday we heard from UK climate science community about their work on AR5. The event was called “Climate Change…
Chicken al la still not a king
The royal prince in waiting of Britain labels climate skeptics as “headless chickens”. From The Telegraph: Prince Charles has criticised climate change deniers, describing them as the “headless chicken brigade”…
NASA revises Earth's Radiation Budget, diminishing some of Trenberth's claims in the process
From the “settled science” department comes this new revision of Earth’s entire radiation budget. Many WUWT readers can recall seeing this radiation budget graphic from Kenneth Trenberth in 2009: Source:…
CERES Satellite Data and Climate Sensitivity
Guest essay by Ken Gregory See abstract and PDF version here. The determination of the global warming expected from a doubling of atmospheric carbon dioxide (CO2), called the climate sensitivity,…
CO2 and CERES
Guest Post by Willis Eschenbach The Intergovernmental Panel on Climate Change, the bureaucratic agency which appropriated the role of arbiter of things climatic, has advanced a theory for the lack…
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