NOT A LOT OF PEOPLE KNOW THAT

By Paul Homewood

 

As reader David points out, you cannot directly compare global temperature datasets with each other, as they all operate to different baselines. So, for instance, the current GISS temperature anomaly of 0.68C is based on a baseline of 1951-80, but the RSS anomaly of 0.29C is based against 1979-98.

But how do the trends of the two compare over recent years?

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