http://globalfloodmap.org/

Use the interactive map by entering in any number of inches – the map will show what areas would be flooded or at risk and the left side bar will display the number of people displaced. 
According to the World Meteorological Organization (WMO), sea levels have been rising about 3 mm per year since 1993 – totaling a 200 mm increase (7.87 inches) in global averaged sea level since 1870.

 raged sea level since 1870. 

Concepts of Thinking: Spatial Significance, Geographic Perspectives, and Patterns and Trends