Marine "highways"

Image: Bernd Blasius from Wired.com

For the first time, scientists have developed a map of the world's shipping routes through the use of GPS satellite systems.  Singapore ranks #4.  I wonder how many of these cargo ships end up stopping by Semakau landfill as a vacation spot...

Citation: “The complex network of global cargo ship movements” Pablo Kaluza, Andrea Kölzsch, Michael T. Gastner and Bernd Blasius, J. Royal Society: Interface