Cuba, like many nations, could use a good highway system for the 1000km from Santiago to Havana. Maybe one day, if a method of recycling plastic drink bottles into roads pans out, as there is plenty of the former and less of the latter. They have a plan, and the first few kilometres out of Santiago de Cuba is a generally solid six-lane highway, but after a while it generally turns into a Scottish B road or WA country highway, one fairly narrow lane each way. Only with horses and bicycles. Cuba is, I’m told, possibly the only carbon neutral country in the world, and they achieve this partly through…