Fig. 4

The panel above illustrates the weighted mean departures for Tsurf (°C), P (mm day− 1), and subtropospheric multilevel mean of [CH4] (ppb, 300-1,000 hPa) from the first GeoMIP experiment (i.e., G1) simulated by UKESM1-0-LL over the course of 100 years (i.e., 1850–1949). Additional plots delineating weighted and unweighted climatologies and departures are contextualized in S4 and S8, with comprehensive statistics provided in S10. The plots were generated with Python 3.9.18 and the various modules from the Matplotlib and Cartopy libraries43,44.