Up to 410 million people at risk from sea level rises unless emissions reduced

Up to 410 million people at risk from sea level rises unless emissions reduced

Majority of land at risk from a one-metre sea level rise is in the tropics, research finds

Up to 410 million people will be living in areas less than two metres above sea level, and at risk from sea level rises, unless global emissions are reduced, according to a new study.

The paper, published in Nature Communications, finds that currently 267 million people worldwide live on land less than two metres above sea level. Using a remote sensing method called Lidar, which pulsates laser light across coastal areas to measure elevation on the Earth’s surface, the researchers predict that by 2100, with a one metre sea level rise and zero population growth, that number could increase to 410 million people, with the majority of this land found in the tropics.

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