The Problem with Climate Models

So it may well be, no, it is likely that once the underlying physics is properly understood, climate models will emerge that produce an ECS value considerably smaller than 1.8C.…

Paper praising models’ predictions proves they greatly exaggerate

By Christopher Monckton of Brenchley, A recent paper by Hausfather et al. purports to demonstrate that models “are accurately projecting global warming”. In reality, and stripped of the now-routine hype…

CMIP5 Model Atmospheric Warming 1979-2018: Some Comparisons to Observations

From Dr. Roy Spencer’s Blog December 12th, 2019 by Roy W. Spencer, Ph. D. I keep getting asked about our charts comparing the CMIP5 models to observations, old versions of…

Do Models Run Hot Or Not? A Process Control View

Guest post by Kevin Kilty Introduction This short essay was prompted by a recent article regarding improvements to uncertainty in a global mean temperature estimate.[1] However, much bandwidth has been…

Propagation of Error and the Reliability of Global Air Temperature Projections, Mark II.

Guest post by Pat Frank Readers of Watts Up With That will know from Mark I that for six years I have been trying to publish a manuscript with the…

CMIP5 Model Temperature Results in Excel

Guest Post by Willis Eschenbach I’ve been looking at the surface temperature results from the 42 CMIP5 models used in the IPCC reports. It’s a bit of a game to…