Hundreds of barrier islands newly identified in global survey
DURHAM, N.C. -- Earth has 657 more barrier islands than previously thought, according to a new global survey by researchers from Duke University and Meredith College.
The researchers identified a total of 2,149 barrier islands worldwide using satellite images, topographical maps and navigational charts. The new total is significantly higher than the 1,492 islands identified in a 2001 survey conducted without the aid of publicly available satellite imagery.
All told, the 2,149 barrier islands measure 20,783 kilometers in length, are found along all continents except ...

