Carbon budgets seek to balance an emission increase in one sector, such as agriculture, with corresponding reductions in another. They can help limit global warming because carbon budgets link the rate of emissions to the additional rise in temperature and can offer a stepped approach to reaching climate targets. Also, they help gauge the effectiveness of GHG-reduction measures, such as using renewable energy sources, and take account of mitigation factors like carbon capture initiatives or re-forestation schemes…
https://www.weforum.org/agenda/2024/03/carbon-budget-climate-change-net-zero/