Focus 

Carbon budgets and the 1.5 °C target

Budgets of carbon emissions that are consistent with limiting warming to no more than 1.5 °C over preindustrial temperatures have been hotly debated, following the Paris Agreement on climate change targets. Here we present comments and primary research discussing the impacts of the debate on decision making processes, and the issues that the climate science community now needs to grapple with.

Carbon budgets