Coastal News Today | World - Coastal Protection Can Signific

Coastal News Today | World - Coastal Protection Can Significantly Reduce Migration From Sea Level Rise


But these protections are overlooked in most migration estimates. A
new study predicts coastal protection could limit migration to 17 to 72 million people during the 21st century—less than half of
The study, published in
Earth’s Future, AGU’s journal for interdisciplinary research on the past, present and future of our planet and its inhabitants, is the first to look at the effects of coastal protection on migration rates on a global scale. The analysis takes into account a wide range of climate change and economic scenarios.
The authors find that, from a purely economic point of view, it makes sense to protect about 3% of the global coastline—mainly around densely populated cities and floodplains. However, for people living on less populated coastlines in poorer communities with fewer assets to protect, retreating would be a more affordable option for local governments than investing in protection.

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