International Herald Tribune: The British television watchdog has rebuked Channel 4 for “unfair treatment” of several scientists and the United Nations Intergovernmental Panel on Climate Change in “The Great Global Warming Swindle,” a controversial documentary that was aired last year and has been seen around the world on in the Internet and DVD. But the agency, the Office of Communications, concluded in a report issued on Monday that the film, while containing “intemperate” …