Global survey shows planners use widely varying sea-level rise projections for coastal adaptation

This paper analyzes the first global survey on the use of sea-level rise (SLR) projections for 2050 and 2100 by coastal practitioners. While the threat of SLR is widely recognized, only 72% of respondents utilize SLR projections in their planning, with lower utilization in developing countries. There's no global standard; most use a single projection, while some consider a low-probability high-end scenario. Countries with adaptation histories and national support show greater SLR projection integration. The research provides insights into current planning practices and informs the application of science for effective adaptation.

Daniella Hirschfeld, David Behar, Robert J. Nicholls, Niamh Cahill, Thomas James, Benjamin P. Horton, Michelle E. Portman, Rob Bell, Matthew Campo, Miguel Esteban, Bronwyn Goble, Munsur Rahman, Kwasi Appeaning Addo, Faiz Ahmed Chundeli, Monique Aunger, Orly Babitsky, Anders Beal, Ray Boyle, Jiayi Fang, Amir Gohar, Susan Hanson, Saul Karamesines, M. J. Kim, Hilary Lohmann, Kathy McInnes, Nobuo Mimura, Doug Ramsay, Landis Wenger, Hiromune Yokoki