“New research compares what has been observed to what is forecast and finds that warming in this century will be modest—near the lowest extreme of the prospective range given by the United Nations. The previous administration justified its policy choices by calculating the Social Cost of Carbon [dioxide]. We interfaced their model with climate forecasts consistent with the observed history and enhanced the “fertilization” effect of increasing atmospheric concentrations of CO2. We find that making the warming and the vegetation response more consistent with real-world observations yields a negative cost under almost all modeled circumstances.”
“This constellation of unreliable models, poor scientific practice, and exaggerated estimates of the Social Cost of Carbon argue consistently and cogently for the EPA to reopen and then vacate its endangerment finding from carbon dioxide and other greenhouse gases.”
The Scientific Case for Vacating the EPA’s Carbon Dioxide Endangerment Finding. The Hazard of Unreliable Models Guiding Policy. By Patrick J. Michaels and Kevin D. Dayaratna.
Quote above from page 1 of the pdf available at this link.