How Lord Monckton’s Conundrum can be used to calculate maximum climate sensitivity to CO2

Thought Experiment; Guest post by Bob Irvine How Lord Monckton’s Conundrum can be used to calculate maximum climate sensitivity to CO2. What follows is a discussion only. Introduction; The IPCC…

Gregory et al 2019: Unsound claims about bias in climate feedback and climate sensitivity estimation

Reposted from Dr. Judith Curry’s Climate Etc. Posted on October 18, 2019 by niclewis | By Nic Lewis The recently published open-access paper “How accurately can the climate sensitivity to…

Radiation versus Temperature

Guest Post by Willis Eschenbach [SEE UPDATE AT THE END] Due to the recent posts by Lord Monkton and Nick Stokes, I’ve been thinking about the relationship between radiation and…

What’s the worst case? Climate sensitivity

Posted on April 1, 2019 by curryja | Reposted from Climate Etc. by Judith Curry Are values of equilibrium climate sensitivity > 4.5 C plausible? For background, see these previous…

What’s the worst case? A possibilistic approach

Reposted from Climate Etc. Posted on March 27, 2019 by curryja | by Judith Curry Are all of the ‘worst-case’ climate scenarios and outcomes described in assessment reports, journal publications…

Cliff Mass: victim of academic political bullying

Reposted from Judith Curry’s Climate Etc. by Judith Curry There is a disturbing story coming out of the University of Washington surrounding Cliff Mass. In preparing this article, I have…

New CERES Data

Guest Post by Willis Eschenbach Every fall, there’s good news in the world of satellite information, because the CERES satellite folks add one more year’s worth of data to their…

Warming patterns are unlikely to explain low historical estimates of climate sensitivity

By Nic Lewis Plain language summary A new paper led by a UK Met Office scientist claims that accounting for the difference in the spatial pattern of surface temperature change…

Why does climate sensitivity increase over time in models? A look at two possibilities

Guest analysis by Alberto Zaragoza Comendador Note: if the terms used in this article seem confusing, check out the previous one. Introduction It’s well known that climate models show increasing sensitivity…

Climatology’s startling error of physics: answers to comments

Answers to comments from the original essay on WUWT, here. By Christopher Monckton of Brenchley I make no apology for returning to the topic of the striking error of physics…

It shouldn’t take hundreds of years to estimate climate sensitivity

Guest essay by Alberto Zaragoza Comendador Summary: Climate models with different sensitivities reproduce the historical temperature record just as well (or badly) An interpretation could be the historical temperature record…

Stacking Up Volcanoes

  Guest Post by Willis Eschenbach [See Update at end] As readers of my posts know, I’ve held for many years that there are a variety of emergent phenomena that…

Symmetry and Balance

Guest Post by Willis Eschenbach The CERES satellite dataset is a never-ending source of amazement and interest. I got to thinking about how much energy is actually stoking the immense…

Why Dessler et al.’s critique of energy-budget climate sensitivity estimation is mistaken

By Nic Lewis Plain language summary A new paper by Andrew Dessler et al. claims, based on 100 simulations of the historical period (1850 to date) by the MPI‑ESM1.1 climate…

Game over

By Christopher Monckton of Brenchley Skeptics 1, Fanatics 0. That’s the final score. The corrected mid-range estimate of Charney sensitivity, which is equilibrium sensitivity to doubled CO2 in the air,…

Climate scientist admits embarrassment over future climate uncertainty

WUWT readers may recall this chart which clearly illustrates just how uncertain climate science really is. It seems that some climate academics are a bit embarrassed that they haven’t been…

The DIY Climate Sensitivity Toolkit

Guest disalarmism by David Middleton Do you ever watch the DIY Network?  The TV network where they have all the “Do It Yourself” home improvement shows?  I don’t watch it…

Determination of the CO2 doubling global mean temperature from observations

Guest essay by Girma Orssengo, PhD Orssengo at lycos dot com What is the expected global warming if the atmospheric CO2 concentration doubles from 400 to 800 ppm? The answer…

Claim: Climate sensitivity narrowed to 2.8°C

From the University of Exeter, comes this statistical prediction that doesn’t seem to be getting a lot of press, and rightly so. Read on. Future Climate Change Revealed by Current…

Where The Temperature Rules The Total Surface Absorption

Guest Post by Willis Eschenbach Reflecting upon my previous post, Where The Temperature Rules The Sun, I realized that while it was valid, it was just about temperature controlling downwelling…

Delta T and Delta F

Guest Post by Willis Eschenbach The fundamental and to me incorrect assumption at the core of the modern view of climate is that changes in temperature are a linear function…

Where The Temperature Rules The Sun

I’ve held for a long time that there is a regulatory mechanism in the tropics that keeps the earth’s temperature within very narrow bounds on average (e.g. ± 0.3°C over…

Another ‘worse than we thought’ study: Warming to be 15% worse than worst case scenario

From the ‘scare tactical modeling’ department comes this press release today, which has been circulating to news media until the embargo lifted this morning. You’ll see all sorts of caterwauling…

It’s worse than They thought: warming is slower than predicted

By Christopher Monckton of Brenchley When The Times, a Murdoch paper previously slavish in kow-towing to the Party Line on climate, leads with a story picked up from the more…