Special race held in Nanjing to mark Earth Hour (4/8)

People wearing underwear take part in a running race in Nanjing, capital of east China's Jiangsu Province, March 29, 2014. A special race was held here on Saturday, in which participants wore only underwear so as to advocate the 2014 Earth Hour event and promote the concept of green lifestyle. (Xinhua/Shen Peng)