Sea-Level Rise by 2100

摘要

In his news and analysis piece reporting on the newly released fifth assessment report (AR5) by Working Group I (WGI) of the Intergovernmental Panel on Climate Change (IPCC) ("A Stronger IPCC Report," 4 October, p. 23), R. A. Kerr highlights three fundamental conclusions about climate change that were assessed with equal or greater confidence than in previous IPCC reports. He also points to three "contentious points" on which he states that the AR5 "took a moderate line." Kerr includes sea-level projections among these points, and reports "a rise of 40 to 60 centimeters by late in the century and a worst case of 1 meter by 2100, [which is] higher than in 2007 but far below the meter or two of sea-level rise that some expect."