U.S.A. Temperature Trends, 1979-2023: Models vs. Observations

Updated through 2023, here is a comparison of the “USA48” annual surface air temperature trend as computed by NOAA (+0.27 deg. C/decade, blue bar) to those in the CMIP6 climate models for the same time period and region (red bars). Following Gavin Schmidt’s concern that not all CMIP6 models should be included in such comparisons, … Continue reading U.S.A. Temperature Trends, 1979-2023: Models vs. Observations