Geo- and Climate Science

A leap forward in closing the marine carbon budget from observations

Landsch├╝tzer, Peter; Keppler, Lydia

The Ocean in the Earth System

The ocean plays a crucial role in the global carbon cycle by absorbing the equivalent of 23 percent of all annual CO2 emissions, averaged over the past decade, created by human activities. New observation-based estimates, reconstructed using novel neural network methods, reveal however substantial vacillations in the CO2 uptake on interannual through decadal. The Southern Ocean plays a critical role in the observed fluctuations.