This certificate from USS Nimitz just made it on the short list of what to save from my house in the event of fire. It commemorates my landing aboard the nuclear-powered aircraft carrier at sea off Hawaii last month—part of the Navy’s Great Green Fleet Demonstration whereby a carrier strike group and all its aircraft were fueled by alternatives: nuclear and biofuel blends. I’m writing more about my night aboard Nimitz and the US Navy’s rad new initiatives regarding energy and climate change for a forthcoming piece in Mother Jones.