Early 20th Century Warming – Polar Amplification, Model-Data & Model-Model Comparisons

A Guest Post By Bob Tisdale In this post, we’re going to illustrate how poorly climate models used by the IPCC for their 5th Assessment Report simulate the polar amplification that data indicate took place during the early 20th Century warming period of 1916 to 1945. Advertisements


Global Mean Surface Temperature: Early 20th Century Warming Period – Models versus Models & Models versus Data

A Guest Post By Bob Tisdale This is a long post: 3500+ words and 22 illustrations. Regardless, heretics of the church of human-induced global warming who frequent this blog should enjoy it. Additionally, I’ve uncovered something about the climate models stored in the CMIP5 archive that I hadn’t heard mentioned or seen presented before. It…

Deep Ocean Warming in Degrees C

In recent weeks and months, there’s been a run of papers—with typical mainstream media misinforming embellishments—about improved estimates of the warming of the oceans…and blog posts about them. One thing common to the papers is the use of the metric zettajoules for ocean heat content—a metric that’s meaningless to most people.

Greenland Near-Surface Land Air Temperature Data from Berkeley Earth Present Some Surprises

I enjoy surprises in data, especially when they might make alarmists unhappy. Willis Eschenbach’s post Greenland Is Way Cool at WattsUpWithThat prompted me to take a look at the Berkeley Earth edition of the Greenland TAVG temperature data. See Figure 1, which presents the graph of the annual Berkeley Earth TAVG temperature (not anomaly) data…