20 Feet of Coastal Sea Level Rise will cause major changes

http://www.climatecentral.org/news/nations-megacities-face-20-feet-of-sea-level-rise-19217

If, as suggested by a comprehensive new review in the journal Science, 2°C of global warming will lock in at least 20 feet (6 meters) of eventual sea level rise, what would 2°C of warming (3.6°F) mean for the future and heritage of global nations and cities? 

It would mean a world we don’t recognize, one losing more than 444,000 square miles of land, where more than 375 million people live today. China, the world’s largest emitter of greenhouse gases, is home to by far the largest share of those people, nearly a quarter. The U.S., second biggest emitter, ranks seventh on the exposure list — but is the most affected nation, by total population, outside of heavily threatened Asia. Many large and small nations face much more daunting challenges from the perspective of the percentage of their populations on land at risk.  

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