Patrick C. Doherty, a national-security expert at the New America Foundation, doesn't consider himself a "doomer," a label applied to Heinberg and some of his colleagues. But he does think the nation needs a new way of organizing itself. He is working with Orr and Mykleby on a "national sustainable communities coalition" that will attempt to replicate the Oberlin Project in other parts of the country -- possibly around military bases that are striving for sustainability. ...