Xinhua: The United States will be home to a 1 trillion U.S. dollar carbon emission market by 2020 if its federal and state policymakers continue on their current path towards a comprehensive "cap-and-trade" program that is confined to domestic trading only, a latest analysis released on Thursday said. The new analysis was released by New Carbon Finance, a division of New Energy Finance, the world’s leading provider of information and analysis in the renewable energy and low-carbon …