Prime Minister Mark Carney’s vision of middle powers working with less traditional partners outside the superpower club is already taking shape at the United Nations, says Canada’s ambassador. “We have set up a number of different kinds of relationships that work for specific issues,” said David Lametti, Canada’s ambassador to the UN. “And that’s precisely the manner in which I think Prime Minister Carney has envisaged this, for areas outside of the UN.”Carney attracted global attention this January with a speech to the World Economic Forum in Davos urging middle powers to band together to advance their interests and avoid…