By: Peter Daou on June 09, 2009 Here’s a bold idea: Single-use plastic bags, a staple of American life, have got to go, the United Nations’ top environmental official said Monday. Although recycling bags is on the rise in the United States, an estimated 90 billion thin bags a year, most used to handle produce and groceries, go unrecycled. They were the second most common form of litter after cigarette butts at the 2008 International Coastal Cleanup Day sponsored by the Ocean Conservancy, a marine environmental group. “Single use plastic bags which choke marine life, should be banned or phased out rapidly everywhere. There is simply zero justification for manufacturing them anymore, anywhere,” said Achim Steiner, executive director of the U.N. Environment Programme. His office advises U.N. member states on environmental policies.