Study: lack of cloud physics biased climate models high

The Hockey Schtick brings this to our attention. It seems Dr. Roy Spencer was prescient with his observation: “The most obvious way for warming to be caused naturally is for…

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…

Can The IPCC Do Revolutionary Science?

Guest Essay by Barry Brill The timing couldn’t be worse. On 23-26 September, scores of representatives of the world’s Environment Ministries are scheduled to meet in Stockholm to wordsmith the…

Grade school science howler from Ken Caldeira: 'CO2…forms carbonic acid (the same thing that makes soda fizz)'

From the Carnegie Institution , where soda pop science is like a carbonic acid trip, they say (thanks to modeling) we have to make big changes:  “To save coral reefs,…

Volcanic Corroboration

Guest Post by Willis Eschenbach Back in 2010, I wrote a post called “Prediction is hard, especially of the future“. It turned out to be the first of a series…

AR5 Climate Forecasts: What to Believe

Guest post by Pat Frank The summary of results from version 5 of the Coupled Model Intercomparison Project (CMIP5) has come out. [1] CMIP5 is evaluating the state-of-the-art general circulation…

Preview of CMIP5/IPCC AR5 Global Surface Temperature Simulations and the HadCRUT4 Dataset

Guest post by Bob Tisdale INTRODUCTION As a preview of the upcoming Intergovernmental Panel on Climate Change (IPCC) 5th Assessment Report (AR5) due out in September 2013, in this post,…