China smog: Greenpeace reports some easing pollution levels in 2015

China may have found itself once again in the news for the choking smog which blanketed many of its cities over the past month, but pollution in the worlds number two economy actually eased in 2015, data compiled by Greenpeace shows. The data, which covers 367 cities, showed average PM2.5 levels dropping by 10 percent in 2015 compared with the previous year. However, even with the improvement, 80 percent of the cities in the survey still failed to meet national air quality standards. Jan 20, 2016