The US military is the single largest user of energy in the nation, but it’s also trying to reduce its “carbon bootprint.” Scenes taped at Fort Irwin and Camp Pendleton show the Army and Marines experimenting with wind and solar in order to reduce the number of fuel convoys that are vulnerable to attack. Solar panels on tents, efficient LEDs, and water purification techniques can save both lives and money. Overall the military has ambitious goals to increase energy independence. And with hybrid-drive ships such as the USS MAKIN ISLAND and biofuel-powered planes, it’s showing that renewable energy can both be practical and be spun off from military innovations into civilian life.