The future of America's greatest city is at risk.
For anyone who thinks sea-level rise is a distant problem, the latest news from the Arctic is not encouraging. This summer, temperatures in Greenland spiked to the highest levels on record.
Hurricane Sandy, which hit New York in October 2012, flooding more than 88,000 buildings in the city and killing 44 people, was a transformative event. It did not just reveal how vulnerable New York is to a powerful storm, but it also gave a preview of what the city faces over the next century, when sea levels are projected to rise five, six, seven feet or more, causing Sandy-like flooding (or much worse) to occur with increasing frequency.