A Changing Climate For State Policy-Making Regarding Climate Change

Issued by 13 federal agencies, the 2018 Fourth National Climate Assessment presented a stark warning on the consequences of climate change for the United States. The report predicts that if significant steps are not taken to rein in global warming, the damage will reduce the U.S. economy by as much as 10 percent by the end of the century. The report, which was mandated by Congress and made public by the White House, is notable not only for the precision of its calculations and bluntness of its conclusions—the 1,656-page assessment lays out the devastating effects of a changing climate on the economy—but also in how it conflicts with President Donald Trump's environmental deregulation plan. U.S. policy efforts at the state and local levels are ramping up to address this complex topic. These include: