CLARKE Later this year, world leaders will meet in Durban, South Africa, to define the political map of a low-carbon society. Politicians, expert negotiators and even carbon-credit traders all will have a place at the table, but my argument is that engineers must occupy a leadership seat. If we take a lesson from history, we see that the last industrial revolution was pioneered by engineers who didn’t just answer questions and solve problems that were put in front of them—they defined the questions. It has long been accepted that the world one day will have to move away from fossil