Exogenous Redux

A reader recently requested that I revisit the issue of adjusting temperature data to allow for known factors, the ones that don’t affect the trend but do cause fluctuations, in order better to isolate the trend changes, which are mainly due to greenhouse gases. We can call those known influences exogenous factors. I’ve dealt with this many times, and published research about it, so I’m not going to say very much about the methodology.

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