Green star: Cate Blanchett welcomes business leaders

Business leaders including BP's Tony Hayward, Virgin's Sir Richard Branson, and Sir Martin Sorrell, founder of the advertising group WPP, will converge on Copenhagen today for the World Business Summit on Climate Change.

The event, which will also be graced by actress Cate Blanchett and former US vice-president Al Gore, is one of several being held in the lead-up to a key conference in November, also in Copenhagen. This week's two-day event will look to address ways to cut carbon output.