Song et al. (2026): Observationally constrained global warming hysteresis under CO₂ removal
Se-Yong Song, Duo Chan and Sang-Wook Yeh, IN: Communications Earth & Environment, https://doi.org/10.1038/s43247-026-03484-1
Stabilizing global warming under ongoing anthropogenic warming will likely require atmospheric carbon dioxide removal. However, the extent to which carbon dioxide removal can reverse past warming remains uncertain due to divergent responses across a limited set of models. Here, the authors develop a data-driven emulator based on an energy balance model with three layers that captures the nonlinear temperature response to forcing.