Subnational—and I will come to that. The momentum is growing. California will commence emissions trading next year, on 1 January. On 14 November, they will have their first auction of carbon allowances. By 2015, California's cap-and-trade program will be the world's third-largest emissions trading market, after the European Union and the Korean ETS. The scheme is remarkably similar to the scheme that we have in Australia. It will cover 85 per cent of California's emissions. I can speak with pretty direct and recent authority because I met with senior officials of the Californian government some two weeks ago.