Like a perverse turtle, Rob Greenfield wears his trash on his back: Sandwiched between heavy duty plastic sheeting is every wrapper, bag, tissue and twisty tie the environmental activist has accumulated over the past few weeks. His unusual garb is part of an attention-grabbing demonstration.
An environmentalist and an artist team up to make a big impact statement. Kristen A. Schmitt tells the story for the Smithsonian.