how much could sea level rise in the 21st century
Future sea level The Intergovernmental Panel on Climate Change (2007)[1] projected sea level would reach 0.18 to 0.59 m above present by the end of the 21st century but lacked an estimate of ice flow dynamics calving.[2][3] Calving was added by Pfeffer et al. (2008)[4] indicating 0.8 to 2 m of SLR by 2100 (favouring the low end of this range). Rahmstorf (2007)[5] estimated SLR will reach 0.5 to 1.4 m by the end of the century. Pielke (2008)[6] points out that observed SLR has exceeded the best case projections thus far. These approximations and others indicate that global mean SLR may reach 1 m by the end of this century. However, sea level is highly variable and planners considering local impacts must take this variability into account.
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