Photo: New York, Boston "Directly in Path" of Sea Level Rise



Major cities in the northeastern U.S. and Canada "are directly in the path of the greatest rise" in sea level if Greenland glaciers continue to melt due to global warming, a new study says. Above, an iceberg melts off Ammassalik Island in eastern Greenland on July 19, 2007.

Photograph by John McConnico/AP


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