Former WTO director-general: Countries must act now to avert trade fight over climate 

NEW YORK -- Countries must coordinate to forestall a “downward spiral” of retaliation against new trade measures designed to mitigate climate change, former World Trade Organization Director-General Roberto Azevêdo said last week, warning that a spiral could emerge quickly as those policies come into force. “The sooner we try to coordinate, the better,” Azevêdo said, forecasting trade troubles ahead during a Sept. 26 event in New York hosted by Columbia University , one of numerous climate-related events held here on...