Tag Archives: Climate model

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 well as updated the summary Equilibrium Climate Response Graph originally … Continue reading

About these ads
Posted in Climate News, Climate sensitivity, IPCC | Tagged , , , , , , , | 106 Comments

Global Warming is REAL but NOT a Big DEAL

Guest essay by Dr. Ira Glickstein We’ve reached a turning point where it is hard for any Global Warming Alarmist to claim (with a straight face) that the world as we know it is about to end in the coming … Continue reading

Posted in Climate sensitivity, Global warming, Ira | Tagged | 324 Comments

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 are not perfect,” said Sherwood. “But what we are finding … Continue reading

Posted in Climate Craziness of the Week, Climate sensitivity, clouds | Tagged , , , , , , | 168 Comments

On the Futility of Long-Range Numerical Climate Prediction

Note: two events at AGU13 this morning dovetail in with this essay. The first, a slide from Dr. Judith Lean which says: “There are no operational forecasts of global climate change”. The second was a tweet by Dr. Gavin Schmidt, … Continue reading

Posted in Forecasting, Modeling | Tagged , , , , , , , | 265 Comments

From 90% to 95% confidence level: How IPCC claims can be at the same time consistent and absurd.

We have been expecting too much from the IPCC about its confidence level increase: the explanation may actually be simple… and surprising. Guest essay by Stephane Rogeau Image: From IPCC FAQs Many people are wondering what actually made the IPCC … Continue reading

Posted in IPCC, IPCC AR5 Report | Tagged , , , , , , , | 95 Comments

Climate models – worse than we thought

Observations Now Inconsistent with Climate Model Predictions for 25 (going on 35) Years By Paul C. “Chip” Knappenberger and Patrick J. Michaels Question: How long will the fantasy that climate models are reliable indicators of the earth’s climate evolution persist … Continue reading

Posted in Modeling | Tagged , , , , | 76 Comments

A Sea Change for Climate Science?

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 is looming. Wouldn’t it be funny if it was the … Continue reading

Posted in Climate sensitivity | Tagged , , , , | 127 Comments

Quite possibly the world’s dumbest Kickstarter project for climate

God help us. These “artistes” write: The scientific community can meet us in December when we bring the calendar to the American Geophysical Union Fall Meeting. This is the world’s largest gathering of Earth and space scientists: 20,000 of them … Continue reading

Posted in Climate News | Tagged , , , , | 104 Comments

Epic Failure of the Canadian Climate Model

Guest Essay by: Ken Gregory The Canadian Centre for Climate Modeling and Analysis located at the University of Victoria in British Columbia submitted five runs of its climate model CanESM2 for use in the fifth assessment report of the International … Continue reading

Posted in Climate data, Modeling | Tagged , | 143 Comments

90 climate model projectons versus reality

Reality wins, it seems. Dr Roy Spencer writes: As seen in the following graphic, over the period of the satellite record (1979-2012), both the surface and satellite observations produce linear temperature trends which are below 87 of the 90 climate … Continue reading

Posted in Modeling | Tagged , , | 103 Comments

New Book by Bob Tisdale: “Climate Models Fail”

THANK YOU Many thanks to everyone who has purchased a copy of Climate Models Fail — and to those who are considering it.  And thank you, Anthony, for posting this here at WUWT! I’ve added an update to the end … Continue reading

Posted in Book Review | Tagged , , , , , , | 60 Comments

Gatekeeping at Geophysical Research Letters

Dr. Judith Curry writes: As the IPCC struggles with its inconvenient truth – the pause and the growing discrepancy between models and observations – the obvious question is: why is the IPCC just starting to grapple with this issue now, … Continue reading

Posted in Peer review | Tagged , , , , , , , | 125 Comments

Uh, oh. It’s models all the way down

Dr. Judith Curry lets an announcement slip in comments.

Posted in Climate News | Tagged , , , | 106 Comments

Hump Day Hilarity – looks like a tipping point to me

This bit of humor is courtesy of Dr. Roy Spencer, who made it a lead in for his recent blog post: A climate modeler increasing his model’s sensitivity.

Posted in Humor, IPCC AR5 Report, Modeling, Satire | Tagged , , , , , | 73 Comments

Lomborg: climate models are running way too hot

Guest essay by Bjørn Lomborg The current climate models are running way too hot. Over the past 30 years, they are at least predicting 71% too much heat. Maybe 159%. (see graph)

Posted in Climate News, Modeling | Tagged , | 125 Comments

National Academy of Sciences: climate models still ‘decades away’ from being useful

From the National Academy of Sciences report A National Strategy for Advancing Climate Modeling: Computer models that simulate the climate are an integral part of providing climate information, in particular for future changes in the climate. Overall, climate modeling has … Continue reading

Posted in Climate News, Modeling | Tagged , , , , , , , | 114 Comments

Statistical proof of ‘the pause’ – Overestimated global warming over the past 20 years

Commentary from Nature Climate Change, by John C. Fyfe, Nathan P. Gillett, & Francis W. Zwiers Recent observed global warming is significantly less than that simulated by climate models. This difference might be explained by some combination of errors in … Continue reading

Posted in Uncategorized | Tagged , , , | 348 Comments

Another uncertainty for climate models – different results on different computers using the same code

New peer reviewed paper finds the same global forecast model produces different results when run on different computers Did you ever wonder how spaghetti like this is produced and why there is broad disagreement in the output that increases with … Continue reading

Posted in Modeling, Uncertainty | Tagged , , , | 281 Comments