National Geographic magazine has several features surrounding an article about rising sea levels. One is a map that shows where the world's current coastlines are and where they would be if all the world's icecaps, icebergs, and glaciers melted. If that happened, sea levels would rise 216 feet. That might not seem like much, until you realize how many people live in those coastal areas that would be affected. At the site, you can get a good look at every continent, including Antarctica, which shows the biggest difference of course. -via Digg
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