Scotsman: THE co-leader of the Scottish Greens has said he is increasingly “ambivalent” on the idea of a high-speed railway linking Scottish and English cities. Patrick Harvie MSP said the proposal for a fast link between Edinburgh, Glasgow and London – which has been touted as an eco-friendly alternative to flying – may not be the best use of money. He said: “The more I look at it the more ambivalent I become.” He said it was already possible to make the journey by train in under …