Art Bébé says:

Reciting form Bill McGuire: Hothouse Earth, ‘How rapidly the global temperature will climb depends on what we do next. If business as usual continues, we could barrel through 1.5-degree guardrail in the next six to nine years and the 2.0-degree mark in as little as twenty-five years … worse news is that, according to a research paper published in Nature in 2021, whatever action we take to cut emissions, we will not be able to stop a temperature rise in excess of 2-degrees, and probably as high as 2.3-degrees.’