Integrating new sea?level scenarios into coastal risk and adaptation assessments: An ongoing process

The release of new and updated sea-level rise (SLR) information, such as from the Intergovernmental Panel on Climate Change (IPCC) Assessment Reports, needs to be better anticipated in coastal risk adaptation assessments. This requires assessments regularly reviewed needed, reflecting information but retaining useful earlier In this paper, guidance types SLR available is presented, including for extremes. An intercomparison evolution headline projected ranges across all IPCC reports show an increase fourth fifth most recent “Special Report Ocean Cryosphere a Changing Climate” assessment. have begun highlight importance potential high-end response, mainly uncertainties Greenland/Antarctic ice sheet components, how might considered scenarios. methods that are developed here practical consider assessment, planning, long-term decision-making ongoing process ensure despite large uncertainties, pragmatic decisions can made. It concluded should not seen automatic reason abandoning existing assessments, opportunity review (i) assessment's robustness light science (ii) utility proactive planning strategies, especially over more uncertain longer term. article categorized under: Assessing Impacts > Scenario Development Application