Beijing, neighboring cities see heavy pollution

Photo taken on March 16, 2016 shows the surroundings of Guomao Bridge in Beijing, capital of China. As temperatures rise, dispersal of foul air becomes more difficult. Beijing and its nearby Tianjin and Hebei Province have been smogbound since the start of this week. A yellow alert for air pollution is issued Wednesday afternoon in Beijing. (Xinhua/Luo Xiaoguang)