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. 2007 Apr;115(4):A196–A203. doi: 10.1289/ehp.115-a196

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An island nation hangs on — Residents of a squatter settlement in Funafuti, the capital of the island nation of Tuvalu, wade through floodwaters during a high spring tide, when saltwater has seeped up through the ground and caused flooding. Rising sea level poses a very real threat to low-lying nations such as these.