The Eastern tip of Chongming Island in the mouth of the Yangtze River is where the City of Dongtan is being planned. On the LEFT: the current sea level. In the MIDDLE: a 2 meter sea-level/storm surge. On the RIGHT: a 4 meter sea-level/storm surge. Images are from: Alex Tingle’s Flood Maps site (Color Enhanced); base map by Google Map; data by NASA