Guardian: When Sir Crispin Tickell had the temerity to suggest that "the business community needs to re-examine the fundamentals of economics" at the recent World Business Summit on Climate Change in Copenhagen, his discordant tone was drowned out by a chorus of more than 800 delegates singing the praises of unfettered markets as a means to tackle climate change. The commitment to carry on with business as usual took an almost surreal form at times. Indra Nooyi, the chief executive officer of …