Pupils and students of Green Union of Harbin Institute of Technology pose for photos at Hongqiao Elementary School in Harbin, capital of northeast China's Heilongjiang Province, Oct. 30, 2007. This is the fifth time in October for Green Union to enter elementary schools to publicize environment protection. Founded in 1997, the Green Union of Harbin Institute of Technology is dedicated to promote environment protection with various lively activities. (Xinhua Photo)
Pupils listen carefully to a lecture given by students of Green Union of Harbin Institute of Technology in Harbin, capital of northeast China's Heilongjiang Province, Oct. 30, 2007. This is the fifth time in October for Green Union to enter elementary schools to publicize environment protection. Founded in 1997, the Green Union of Harbin Institute of Technology is dedicated to promote environment protection with various lively activities. (Xinhua Photo)
Pupils with Hongqiao Elementary School play games during the activity on environment protection given by students of Green Union of Harbin Institute of Technology in Harbin, capital of northeast China's Heilongjiang Province, Oct. 30, 2007. This is the fifth time in October for Green Union to enter elementary schools to publicize environment protection. Founded in 1997, the Green Union of Harbin Institute of Technology is dedicated to promote environment protection with various lively activities. (Xinhua Photo)
