Nature Climate Change, Published online: 30 October 2023; doi:10.1038/s41558-023-01846-7
The remaining carbon budget for 1.5 °C has been a highly discussed tool to communicate the urgency of efforts needed to meet the Paris Agreement. Now, research reassesses IPCC estimates, suggesting that ongoing near-flat emissions and methodological choices can make big relative differences to the tiny remaining 1.5 °C budget. Nature Climate Change