There can't be too many places where you'd see Ross Garnaut and John Hewson wearing ID tags with ARTIST written on them. But at WOMADelaide, the Peter Gabriel-inspired World of Music and Dance festival held annually in Adelaide's Botanic Park, someone in management has a sense of humour. Either that or they thought ECONOMIST just wouldn't cut it backstage with De La Soul or the Violent Femmes. Hewson and Garnaut were at the festival to talk about the economic opportunities offered by a green economy. They were billed as part of the Planet Talks - a series of talks about, well, the planet - headlined this year by the prolific Canadian academic and environmentalist David Suzuki. By all reports Suzuki slayed them; not necessarily in the same manner as the Femmes did on opening night, but he was pretty good all the same. One of his main points for locals in the audience was that he wasn't all that excited about the SA government's plans to enter what Bill Shorten calls 'the international business of storing other people's nuclear waste.