Category Archives: AGW

Differences in 2019 temperatures

Posted on January 17, 2020 by Clive Best

HadCRUT4.6 has released their annual temperature result for 2019 as 0.74C. They grid the station data (CRUTEM4) with SST data (HADSST3) in 5×5 degree bins and perform an area weighted: global average. CRUTEM4 has 7680 stations which contribute to calculating … Continue reading →

Posted in AGW, Climate Change | Tagged , | 7 Comments

The baseline problem

Posted on January 5, 2020 by Clive Best

A baseline is simply a period of successive years whose average temperature is subtracted from a time series to produce temperature “anomalies”. One normally associates anomalies with weather station data where the baseline is then the 12 monthly seasonal averages … Continue reading →

Posted in AGW, Climate Change, climate science | Tagged , | 5 Comments

30 years of IPCC assessment reports – How well have they done?

Posted on January 2, 2020 by Clive Best

Over the last 30 years there have been 5 IPCC assessment reports on climate change.  I decided to compare each  warming predictions made at the time of publication to the consequently measured  temperatures. The objective is twofold. Firstly how well … Continue reading →

Posted in AGW, Climate Change, climate science, CRU, Hadley, IPCC | Tagged , | 25 Comments