above 1.5ºC, many estimates are nonlinear, with marginal economic impacts increasing with temperature . At 1.5℃ warming, most aggregate global impacts to GDP are negative across different estimation methods, including bottom-up estimation , meta-analysis  and empirical estimations . At 2°℃ Watts et al.  estimate a relative decrease in effective labour by 10%, which would have profound economic consequences. Byers et al.  found that global exposure to multi-sector risks approximately doubles between 1.5℃ and 2ºC, while the percentage of the global population exposed to flooding is projected to rise by 24% with 1.5℃ warming and by 30% with 2.0℃ warning .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report