Business Green: The government’s newly formed panel on climate change has come under fire after it was revealed that its own offices were the least energy efficient of all Whitehall departments. Inspectors graded the premises of the Committee on Climate Change with the lowest possible energy score, which was described as “one of the worst ratings yet recorded”. Ironically, the expert body was set up last year to advise prime minister Gordon Brown and his cabinet on the best ways to reduce …