Reuters: Talks at the U.N.'s aviation body must bridge a deep divide between developed and emerging nations over airline emissions to avert the threat of a carbon trade war with the European Union. After more than a decade of debate at the International Civil Aviation Organization (ICAO), there is little sign emerging powers China and India are ready to pay to pollute. Failure to get a deal would open the way for the European Union to resume international implementation of its own law that makes all aviation...