New study predicts coastal protection could limit migration to 17 to 72 million people during the 21st century—less than half of some previous estimates. From a purely economic point of view, it makes sense to protect about 3% of global coastline—mainly around densely populated cities & floodplains.
https://ift.tt/3vTDsUS via /r/science https://ift.tt/3f2wy9f
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