The fragile state of coastal Louisianas defenses against rising seas were laid bare nine years ago to the day, when Hurricane Katrina made landfall in New Orleans. But the horrific damage to life and property caused by that storm pales in comparison to what is projected in the coming few years and decades: as a comprehensive and beautifully designed ProPublica investigation reveals, seas along the entire US coastline are poised to rise between 1.5 and 4.5 feet by 2100, while the coastline along Southeast Louisiana is on its own expected to experience a water level increase of 4 to 5 feet.
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