U.S. Air Force Academy Cadet Marcus Penner analyzes the gas output of an anaerobic digester at the Air Force Civil Engineer Center’s Readiness Directorate at Tyndall Air Force Base, Fla., recently. Penner worked with AFCEC scientists during a six-week research project to develop a system to break down food waste to produce methane gas. Methane could potentially be burned for heat or to generate electricity at expeditionary bases. (U.S. Air Force photo/John Burt/Released)
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