António Guterres says the latest report from the Intergovernmental Panel on Climate Change (IPCC) reveals ‘a litany of broken climate promises’ by governments and businesses, and accuses some of them of lying in claiming to be on track to limiting future heating to 1.5C above pre-industrial levels. In a strongly worded rebuke, he says: ‘It is a file of shame, cataloguing the empty pledges that put us firmly on track towards an unliveable world’