According to the Working Group I contribution to the Intergovernmental Panel on Climate Change’s (IPCC) Fifth Assessment Report (IPCC, 2013), “it is very likely that the global mean rate [of sea level rise] was 1.7 [1.5 to 1.9] mm yr-1 between 1901 and 2010 for a total sea level rise of 0.19 [0.17 to 0.21] m” (p. 1139) and “it is very likely that the rate of global mean sea level rise during the 21st century will exceed the rate observed during 1971–2010 for all Representative Concentration Pathway (RCP) scenarios due to increases in ocean warming and loss of mass from glaciers and ice sheets” (p. 1140).