ClimateWire's Friedman previews N.Y. climate summit meeting

As the world's leaders head to New York City next week for the United Nations' climate summit, how will the meeting advance the discussion toward the next binding treaty, which is slated to be signed in Paris next year? On today's The Cutting Edge, ClimateWire deputy editor Lisa Friedman gives details on who is expected to attend the meeting and the role the United States could play in the discussions.