From the May issue of Vanity Fair: What Manhattan might look like if sea levels continue to rise. Photo illustration by John Blackford; original photograph by Cameron Davidson. Related article: “While Washington Slept,” by Mark Hertsgaard.

Manhattan

What Washington, D.C., might look like if the Greenland ice sheet melted completely.
Photo illustration by John Blackford; original photograph by Jason Hawkes/Corbis:

Washington, D.C.