“Loehle on Hoffman et al and CO2 trajectories” Anthony Watts learns that the “National Council for Air and Stream Improvement, Inc.” forestry lobby group has funded a paper by Craig Loehle in Atmospheric Environment, a ‘low-impact‘ air pollution journal.
Loehle whips up some arbitrary equations that seem to be equally good at matching historical atmospheric CO2 concentrations as the IPCC’s, so clearly nothing can be concluded from the IPCC’s ‘scary’ predictions.
The IPCC’s predictions based on physical and chemical atmospheric science. That’s more relevant than pulling numbers out of thin air and pretending you’ve studied something in its scientific context. This is looks like statistical game-playing to me.