in 2017 an assessment that considered the capacity of the oceans to absorb carbon, the planet’s energy imbalances, and the behavior of fine particles in the atmosphere concluded that the committed global warming (arising from past emissions and becoming a reality even if all new emissions ceased instantly) had already added up to 1.3°C and hence it would require only an additional 15 years of new emissions to surpass 1.5°C.[83] The latest analysis of these combined effects concluded that we are already committed to global warming of 2.3°C.[84]
