The easiest way to get a round of applause at a conference of ecologists is to make a rude joke about economists. Nature-studiers think money-studiers are heartless vandals who demand the rape of Mother Nature in the quest to build up piles of financial assets at the expense of natural ones. Dieter Helm, an Oxford professor, is a professional economist but he is bravely crossing the floor into ecology and wants to show how to build up “natural capital”.
