Citizens ride bikes provided by the government to promote the low-carbon lifestyle in Guangyuan city, Southwest China's Sichuan province, Aug 27, 2010. [Photo/Asianewsphoto]
Citizens ride bikes provided by the government to promote the low-carbon lifestyle in Guangyuan city, Southwest China's Sichuan province, Aug 27, 2010. [Photo/Asianewsphoto]