Smith Island is sinking into the Chesapeake Bay

Car ferry to Smith Island, MD, 10-14-15

Twelve miles off the coast of Maryland’s Eastern Shore, Tim Marshall and I knife through the salty, choppy waters of the Chesapeake Bay in an aging white fishing skiff. It’s a clear, bright August morning, and Marshall, slugging cans of Diet Coke, steers us straight for the approximately 4,500 acres of tidal marsh that make up…