According to new research, the amount of carbon absorbed by the ocean is being underestimated by up to 0.9 Gigatonnes a year. This animation reflects the findings, showing the mean monthly ocean-to-atmosphere carbon flux (corrected for cool water and salty sea surface) from 1992 to 2019. Carbon flowing into the ocean (i.e. a negative flux) is represented in blue, with red regions representing where carbon is being emitted from the ocean into the atmosphere (a positive flux).