A Framework for Sustained Climate Assessment in the United States Bulletin of the American Meteorological Society

The recent Fourth National Climate Assessment (NCA4) (USGCRP 2017a, 2018a) shows that extensive changes in climate have been observed in all regions of the country. The report states that climate change “creates new risks and exacerbates existing vulnerabilities…presenting growing challenges to human health and safety, quality of life, and the rate of economic growth.” And it concludes that without additional large reductions in emissions, “substantial net damage to the US economy [will occur] throughout this century…”