From the NoTricksZone By Kenneth Richard Doubling the 2005 CO2 concentration (380 ppm) to 760 ppm only produces a globally-averaged 2.26 W/m² perturbation at the top of the atmosphere (TOA). This…
Tag: Climate sensitivity
Spencer and Christy’s new climate sensitivity paper has been published – and its LOWER.
From Dr. Roy Spencer: If we assume ALL *observed* warming of the deep oceans and land since 1970 has been due to humans, we get an effective climate sensitivity to…
An Interview with Top Climate Scientist Bjorn Stevens
We should keep looking, but so far there’s no evidence that clouds play a major role.
Important New Paper Challenges IPCC’s Claims about Climate Sensitivity
Official IPCC estimates of future global warming may be overstated
Outside The Black Box
Models that need model-specific input to replicate the known past, violate the most basic criteria of science to earn the label “scientifically proven”, independent of the “proven physics” they are…
Climate scientists realize models yield “implausibly hot forecasts of future warming”.
Guest “Ya think?” by David Middleton U.N. climate panel confronts implausibly hot forecasts of future warmingBy Paul Voosen Jul. 27, 2021 Next month, after a yearlong delay because of the…
A global context for Man-made Climate Concerns
Therefore whatever CO2 reductions and sacrifices of wellbeing are made in the Western World will be overtaken and soon exceeded by them. It should be realised that climate change policies…
A fiery past sheds new light on the future of global climate change
Many of today’s climate models rely on past levels of greenhouse gasses and aerosols to validate their predictions for the future. But there’s a problem: While pre-industrial levels of greenhouse…
High end of climate sensitivity in new climate models seen as less plausible
Researchers at Princeton University and the University of Miami reported that newer models with a high “climate sensitivity” — meaning they predict much greater global warming from the same levels…
“USGS Gets Politics Out of Climate Forecasts”
Guest “another thing lost in the November coup” by David Middleton USGS Director Jim Reilly authored a recent opinion piece in the Wall Street Journal… USGS Gets Politics Out of…
New paper suggests historical period estimates of climate sensitivity are not biased low by unusual variability in sea surface temperature patterns
An important new paper by Thorsten Mauritsen, Associate Professor at Stockholm University[i] and myself has just been accepted for publication (Lewis and Mauritsen 2020)[ii]. Its abstract reads:
Climate Models Have Not Improved in 50 Years
Guest “how can he write this with straight face?” by David Middleton Even 50-year-old climate models correctly predicted global warmingBy Warren Cornwall Dec. 4, 2019 Climate change doubters have a…
More Junk Science From the AAAS of A: Bird Apocalypse Edition
Guest Science! (as in “she blinded me with”) critique by David Middleton One of the best things about my morning emails from the American Association for the Advancement of Science…
Putting It On The Line
Guest Post by Willis Eschenbach Thanks to an alert commenter, half of my last post was shown to be in error. Like most folks, I really, really hate to be…
Pre- and Post-Feedback Sensitivity
Guest Post by Willis Eschenbach [UPDATE TWO: Rather than trying to cooper up the errors, I have simply removed the incorrect sections and left the calculation of the Planck feedback intact. I…
Monday Mirthiness – More 'skeptical science' kids scienz
Josh writes: Nic Lewis has a very amusing comment over at Lucia’s about a paper written by Gavin Cawley, Kevin Cowtan, Robert Way, Peter Jacobs and Ari Jokimäki – all part of…
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),…
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…
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”…
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…
Climate Craziness of the Week: only the 'cooler' models are wrong – the rest say 4ºC of warming by 2100
From the University of New South Wales and Dr. Steven Sherwood: “Climate sceptics like to criticise climate models for getting things wrong, and we are the first to admit they…
The Fatal Lure of Assumed Linearity
Guest Post by Willis Eschenbach [note new Update at the end, and new Figs. 4-6] In climate science, linearity is the order of the day. The global climate models are…
Mechanical Models
Guest Post by Willis Eschenbach [NOTE the update at the end of the post.] I’ve continued my peregrinations following the spoor of the global climate model data cited in my…
WUWT Contest Winner, General Audience, 1st Place – “Is There Really a Climate Crisis?”
In sum, encouraging the energy industry to innovate will lead to a prosperous, clean and secure environment not only for us here in the United States but also for the…