Frenger et al. (2025): Southern Ocean Heat Burp in a Cooling World
Ivy Frenger, Svenja Frey, Andreas Oschlies, Julia Getzlaff, Torge Martin and Wolfgang Koeve, IN: AGU Advances, https://doi.org/10.1029/2025AV001700
The ocean accumulates carbon and heat under anthropogenic CO₂ emissions and global warming. In net-negative emission scenarios, where more CO₂ is extracted from the atmosphere than emitted, we expect global cooling. Little is known about how the ocean will release heat and carbon under such a scenario. Here the authors use an Earth system model of intermediate complexity and show results of an idealized climate change scenario that, following global warming forced by an atmospheric CO₂ increase of 1% per year until CO₂ doubling, features subsequent sustained net-negative emissions.