What’s America’s largest export? According to Edward Humes, the surprising answer is trash. 

Humes writes about America’s trash problem in his new book Garbology: Our Dirty Love Affair with Trash. For Humes, wastefulness is one of the few big societal, economic and environmental problems over which ordinary individuals can exert control. 

Tuesday on Worldview, Edward Humes discusses why the country is such a prolific producer of garbage.