Californian Governor Arnold Schwarzenegger is said to be set for a show down after Democratic lawmakers unveiled legislation last week aimed at reducing emissions of greenhouse gases. The bill, backed by the Assembly Speaker Fabian Nunez and a whole host of environmental groups, sets firm limits on carbon dioxide emissions and goes further than recommendations made by Schwarzenegger’s Climate Action Team. So Arnie is now fighting both oil companies and environmentalists on the issue. Who is going to win?