Times (UK): A Channel 4 documentary that argued that global warning was a fraud is to be criticised by the media regulator. On Monday Ofcom is expected to publish a long-awaited report that upholds claims by some of the scientists who appeared in the programme last year that they were misrepresented. The Great Global Warming Swindle, which aired in March last year, has been accused of downplaying the threat in the public mind. It sparked an outcry among environmentalists and many …