Since the revolution in 1959 Cuba has been many things to many people, but the collapse of the Soviet Union meant few have seen the island state as a vision of the future. As worries about “peak oil” grow in developed nations, the communist republic is proving to be an increasingly popular example of how to cope when the spigots run dry, for the simple reason: they’ve already been there. With the loss of supplies from oil-rich Russia in 1991, and a U.S.
