The only question is?when? – Global warming is expected to cause the sea level along the northeastern US coast to rise almost twice as fast as global sea levels during this century, putting New York City at greater risk for damage from hurricanes and winter storm surge. Much of the city is less than 16 feet above the mean sea level, with some parts of lower Manhattan only about 5 feet above the mean sea level, so a rise of 8.3 inches in addition to the global mean rise would pose a threat to this region, especially if a hurricane or winter storm surge occurs.
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