Scientific estimates suggest that the low-lying coral atolls of the Pacific will be especially affected by climate change. The vulnerability of atoll islands and atoll states results from a specific constellation of physical, ecological, social, and economic conditions, including the lopsided relationship between small land area and lengthy coastlines, and the problems of coastal erosion, limited drinking water, high population density, paucity of economic resources, and low incomes (Barnett and Adger 2003, 322-323; Nurse and others 2014 Nurse and others , 1623 Nurse and others , 1634 Connell 2015, 1). Recent studies of the changing morphology of atolls in the western and central Pacific stress the stability that these islands have so far demonstrated in the face of rising sea levels (McLean and Kench 2015, 456, 458; compare Connell 2015, 9-11). Still, the projected consequences of climate changesea level rise, altered precipitation regimes, an increase in extreme weather events, ocean acidification, and coral bleaching-carry considerable risks for low-lying islands, since in combination with existing environmental challenges they will exert long-term negative effects on ecosystems, coastal regions, land surfaces, settlements, freshwater supply, and food security