Guest post by David Middleton Featured image borrowed from here. Nearly every catastrophic global warming doomsday scenario, particularity those involving icecap failures and Noah-size sea level rises are based on…
Category: Modeling
DeConto and Pollard – An Antarctic Science (Fiction?) Disaster
Readers may recall the announcement of the PR for the recent paper claiming Sea-Level rise from Antarctic ice sheet could double in WUWT. In a tongue and cheek way, I prefaced it…
NOAA tweaks their poorly performing Climate Forecast System model to remove 'cold bias'
‘Cold bias’ removed from Atlantic From NOAA/NWS technical information notices (TIN) (h/t) to Dr. Ryan Maue and Larry Kummer. It seems the climate models can’t quite zoom in on the…
Missing from climate models: Unaccounted for Arctic microbes appear to be speeding up glacier melting
From the SOCIETY FOR GENERAL MICROBIOLOGY and the “department of robusted models” comes this Today, at the Microbiology Society’s Annual Conference in Liverpool, scientists will reveal how Arctic microbes are…
Cloudy modeling problems: Today's clouds might not be the same as pre-industrial ones
Study helps narrow down one reason why clouds are hard to model From the DOE/PACIFIC NORTHWEST NATIONAL LABORATORY RICHLAND, Wash. – Airborne particles known as “aerosols” strongly impact the way…
Climate Models are NOT Simulating Earth’s Climate – Part 3
Guest Post by Bob Tisdale UPDATE: See the update below Figure 1.24-8 for the IPCC’s correction of their Figure 9.17 from the 5th Assessment Report. Thanks, Nic. # # #…
Another thing not in climate models 'Synchronized leaf aging' in the tropics
From the DOE/BROOKHAVEN NATIONAL LABORATORY Synchronized leaf aging in the Amazon responsible for seasonal increases in photosynthesis High-tech photography in the Amazon reveals that young leaves grow in at the…
A new climate war brewing: forecasting vs. modeling
A new paper published today by the Global Warming Policy Foundation explains how statistical forecasting methods can provide an important contrast to climate model-based predictions of future global warming. The…
Finally, a study that shows unreliable models are the root of overwrought 'extreme weather' events
Dr. Judith Curry tips me to this new study in GRL: Unreliable climate simulations overestimate attributable risk of extreme weather and climate events Omar Bellprat, Francisco Doblas-Reyes Abstract Event attribution aims…
Initialization practices disqualify UN IPCC global circulation models from use for most climate change forecast purposes
Guest essay by Michael G. Wallace Hydroclimatologist, Albuquerque, NM The United Nations Intergovernmental Panel on Climate Change UN IPCC features and endorses decadal global climate forecasting products. Those in turn…
Study: Current climate models misrepresent El Niño
From the UNIVERSITY OF SOUTHERN CALIFORNIA Clues to the fundamental physics of El Niño from millennia-old corals and clams An analysis of fossil corals and mollusk shells from the Pacific…
'Wild card' in climate models found, 'and that's a no no'
Jo Nova has a post today about an investigation of climate modeling mathematics by her husband David Evans. Evans believes he has uncovered a significant and perhaps major flaw in the mathematics at…
Climate scientists can restart the climate change debate & win: test the models!
By Larry Kummer, from the Fabius Maximus website Summary; Public policy about climate change has become politicized and gridlocked after 26 years of large-scale advocacy. We cannot even prepare for…
New computer model says human emissions can 'render Earth ice free'
From the “department of global roasting” and the UNIVERSITY OF ALASKA FAIRBANKS, where great ideas like this one are formed at Halloween parties, (yes really, see PR) comes this claim: UAF…
Hilarious claim: "we know when global (cough, cough) warming first appeared in the temperature record, er, models"
From the UNIVERSITY OF NEW SOUTH WALES (via Eurekalert) and the “Where’s Waldo?” department comes this hilarious claim. Why hilarious? Because the headline says “global warming”, yet the research says that warming…
How reliable are the climate models?
Guest essay by Mike Jonas There are dozens of climate models. They have been run many times. The great majority of model runs, from the high-profile UK Met Office’s Barbecue…
Lags and Leads
Guest Post by Willis Eschenbach I’ve been thinking about thermal lags in the climate system. Everyone is familiar with thermal lag in everyday life. When you put a cast-iron pan…
The Trouble with Global Climate Models
Guest essay by Rud Istvan The IPCC’s Fifth Assessment Report, Working Group 1 (AR5 WG1) Summary for Policy Makers (SPM) was clear about the associated Coupled Model Intercomparison Project (CMIP5)…
Validation Of A Climate Model Is Mandatory: The Invaluable work of Dr. Vincent Gray
Guest Opinion: Dr. Tim Ball Early Awareness Vincent Gray, M.A., Ph.D. is one of the most effective critics of the Intergovernmental Panel on Climate Change (IPCC) through his NZ Climate…
Pocket-calculator climate model outperforms billion-dollar brains
From Press Release:Four skeptical researchers’ new Chinese Academy paper devastatingly refutes climate campaigners’ attempt to criticize their simple model… In January 2015, a paper by four leading climate researchers published…
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