Category Archives: Climate Change

Zeke’s Wonder Plot

Zeke Hausfather who works for Carbon Brief and Berkeley Earth has produced a plot which shows almost perfect agreement between CMIP5 model projections and global temperature data. This is based on RCP4.5 models and a baseline of 1981-2010. First here … Continue reading

Posted in AGW, Climate Change, IPCC | 27 Comments

A comparison of CMIP5 Climate Models with HadCRUT4.6

Overview: Figure 1. shows a comparison of the latest HadCRUT4.6 temperatures with CMIP5 models for Representative Concentration Pathways (RCPs). The temperature data lies significantly below all RCPs, which themselves only diverge after ~2025. Modern Climate models originate from Global Circulation … Continue reading

Posted in AGW, Climate Change, IPCC | 18 Comments

Global Temperatures – the big picture

Suppose you wanted to measure whether the total number of ants on earth has been increasing. The number of ants at any given place depends on location and on season. Let’s assume that today there are 10,000 botanists at fixed … Continue reading

Posted in AGW, Climate Change, climate science | 34 Comments