Jeremy Clarkson has told Greta Thunberg to 'shut up and go back to school' in an excoriating attack on the teenage environmental activist. The outspoken broadcaster, 59, hit out at the Swedish eco-warrior who he dubbed 'mad and dangerous', the latest in a series of attacks against the 16-year-old. Clarkson, who was fired from the BBC in 2015 after rowing with a Top Gear producer over a steak, was a ...