Telegraph: The author of the Government’s 2006 report on the economic impact of climate change said that Mr Obama, the US President-Elect, would revolutionise Washington’s approach to the subject. He said an Obama administration gives hope that a new global agreement could be formulated to take over after the expiration of the Kyoto protocol in 2012. “He’s night and day on this issue relative to his prehistoric predecessor George Bush,” Lord Stern told BBC Radio 4’s Today programme. “That …