Pedestrians looks across the East River at the lower Manhattan skyline in New York, Tuesday, June 11, 2013. The projections paint an unsettling picture of New York's future: a city wher

 

              Pedestrians looks across the East River at the lower Manhattan skyline in New York, Tuesday, June 11, 2013. The projections paint an unsettling picture of New York
Pedestrians looks across the East River at the lower Manhattan skyline in New York, Tuesday, June 11, 2013. The projections paint an unsettling picture of New York's future: a city where by the 2050s, 800,000 people could be living in a flood zone that would cover a quarter of the land, and there could be as many 90-degree days as is now normal for Birmingham, Ala. Facing those new projections of the effects of global warming on the nation's biggest city, Mayor Michael Bloomberg talked Tuesday about what to do about risks that Superstorm Sandy brought into stark relief. (AP Photo/Seth Wenig)