What if, instead of giving Marie Curie and Alexander Fleming Nobel prizes for their life-saving work on radiation and penicillin, they’d been thrown in jail? Or, instead of being awarded the Grand Croix of the Légion d’honneur for his work on the germ theory of disease, Louis Pasteur was imprisoned like Napoleon on Elba? It would be perverse to return the favour of great, public works by depriving people of their freedom. Yet that is just what we’re doing in Britain right now. The contributions of the people above were remarkable, but how much greater is the challenge of preserving a readily habitable climate, and how thankful should we be to those prepared to throw their life’s energy and creativity at the task?