English: "Global air–sea flux calculated by interpolating SOCAT gridded data using a neural network technique, followed by the gas exchange equation applied to the ocean mass boundary layer. The net flux into the ocean is shown as negative, following convention. The uncorrected curve uses the SOCAT fCO2 at inlet temperature as usually done. Correction of the data to a satellite-derived subskin temperature is shown, and the additional change in flux due to a thermal skin assumed to be cooler and saltier than the subskin by 0.17 K and 0.1 salinity units. Excludes the Arctic and some regional seas—ocean regions included are shown in Supplementary Fig. 2."