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The IPCC Special Report on the impacts of global warming of 1.5 degC (Allen I et al i ., 2018) (SR1.5) concluded with high confidence that extremely hot days are projected to be 3 degC warmer at global warming of 1.5 degC, and 4 degC warmer at 2 degC, with the largest increases in the number of hot days projected to be in the tropics. The SR1.5 concluded that 13% of the global land area was projected to undergo ecosystem transformation at 2 degC global warming but limiting warming to 1.5 degC could reduce this area by 50%. Sea level Limiting global warming to 1.5 degC is projected to reduce sea level rise by around 0.1m compared to 2 degC by 2100, although sea level will continue to rise well beyond 2100 (Allen I et al i ., 2018). [Extracted from the article]