This week, police plan to take cadaver-sniffing dogs to trash dumps in the Washington area.

CNN: Lawyer: Condit has cooperated fully with police

And he describes the Great Pacific Garbage Patch, an enormous expanse of the Pacific Ocean where currents concentrate the trash over a continent-sized area.

ECONOMIST: A history of waste

There is an area of the Pacific the size of Texas known as the "trash vortex" or "plastic soup" where gyrating currents hold an estimated six kilos of plastic for every kilo of plankton, according to Greenpeace.

CNN: Fighting the tide of plastic bags in a world awash with waste