Green NGO drives change at grass roots

How citizen groups are helping to clean up the countryside. Li Jing reports from Henan.

When Tian Guirong first read Silent Spring, Rachel Carson's seminal 1962 book that is credited with helping to launch the environmental movement, it changed her life.

She was so inspired by the American naturalist's courage to speak out about the human impact on ecology (Carson was harshly criticized at the time for her claims pesticides caused pollution), she knew she could make a real difference.