A federal interagency working group released its report Technical Update on the Social Cost of Carbon for Regulatory Impact Analysis Under Executive Order 12866 May 31 finding that the social and economic costs of CO2 emissions are higher than previously thought. Updated modeling techniques in predicting agricultural productivity, human health effects, and property damages from floods have increased the calculated cost of one ton of CO2 emissions in 2020 from $26 to $43, assuming a 3 percent discount rate. Federal agencies will use these updated costs as part of their cost-benefit analyses of new rules and regulations.