Business Green: In a shock move, Gordon Brown has today announced the formation of a new Department for Climate Change and Energy to be headed up by Ed Miliband, one of the prime minister’s closest political allies. According to reports, Miliband is to take up the cabinet role, with Hilary Benn remaining in charge of a now slimmed down department for food and rural affairs. Peter Mandelson has also returned to the cabinet as business sectary, though that department’s responsibility for energy …