From the Roger Pielke Sr. has been saying this for years department comes this paper where Dr. Richard Betts of the UK Met Office is a co-author. h/t/ to Betts Twitter feed today. It is published in Climate Dynamics. Unfortunately, it has a $40 price tag, since it is part of Springer publications, so I can’t offer much more than the abstract. It does look interesting though, even though it is not observationally based, but model based. However, despite that limitation, when the climate modelers start looking at things other than CO2, that can only be a good thing.
Other efforts include this database from the Université de Lausanne that shows just how much has changed over the last nearly three millenniums: (1000BC to 1850 AD)
Clearly, it is a…
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