Diverting even just a portion of¬†the world‚Äôs food¬†waste to¬†waste-to-energy (WTE) systems could free up large amounts of landfill space while powering our vehicles and heating our homes, and thus putting a significant dent in our collective carbon footprint. Pictured: Three Anaerobic Digestion WTE tanks in Fenville, Mich. (Photo courtesy eXtension Farm Energy)