From Figure Cross-Working Group Box ECONOMIC.1, we find a large span of damage estimates, even without considering uncertainty/ confidence in damage responses, including for today's level of warming . There is also evidence that some regions benefit from low levels of warming, leading to net benefits globally at these temperatures. The size of the span of estimates grows with global warming level, with variation across statistical estimates larger than variation in structural estimates. The structural and meta-analyses estimates appear to be in closer agreement, but that outcome is contingent on the meta-analyses' data considerations and approach. Meta analyses to date have not assessed the alternative methods and dealt with the lack of comparability between methods.
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report