Since the communist revolution of 1959, Cuba has been on an economic rollercoaster. The country has lurched from dependency to self-sufficiency, in a bubble of isolation where technological time stopped. Our correspondent visits the artists and self-taught engineers who have kept Cuba running throughout its bizarre ride.
This time, a revolution that had nothing to do with ideology, and it bore a bounty of fruit. Could the U.S. learn sustainability from its new friend?