Chinese multimillionaire Chen Guangbiao steps down from the roof of a car during an event organized to parade people representing companies, which Chen claims pollute the environment, to publicly "shame" them, in Nanjing, Jiangsu province, Feb 21, 2013. [Photo/Agencies]

Chinese multimillionaire Chen Guangbiao (C) parades people representing companies, which he claims pollute the environment, during an event organized to publicly "shame" them and promote awareness on air pollution, in Nanjing city, East China's Jiangsu province, Feb 21, 2013.[Photo/Agencies]