The effects of climate change since 2000 will slow U.S. economic growth slightly over the next 30 years, adding another drag on an economy that will struggle to rebound from the coronavirus pandemic, the Congressional Budget Office (CBO) said on Monday. It projected that on net, climate change will reduce real U.S. GDP by an average of 0.03% annually from 2020 to 2050, compared to what U.S. growth would have been if global climate conditions remained the same as they were in 2000.