Where: 9/F, Breakthrough Centre, 191-197 Woosung Street, Kowloon What: Founded in 1968, the association is the oldest green group in Hong Kong. It promotes sustainable development, environmental protection and education, as well as the conservation of historical and cultural heritage sites, which are a significant part of the environment. How: The group organises a wide variety of activities that need volunteer help; it is recruiting volunteers for its flag day on December 28. If you are interested in making Hong Kong a greener place to live, call 2728 6781 or visit www.conservancy.org.hk for more information. Volunteer: Dorcas Yeung Hiu-yan, 20, is a sociology student at the University of Hong Kong. She did volunteer work for the Conservancy Association over the summer. 'I helped conduct research for a campaign on a law to protect trees and plants from poor care. There is currently no law in Hong Kong that is directly aimed at protecting trees. I interviewed people on the streets in July; the experience was very interesting. I was both surprised and delighted to learn that many citizens have strong opinions on this issue. They felt that the government could do more to protect trees, and believed there was a need to protect those with historical value, such as the Wishing Tree [in Tai Po]. I also helped run educational activities. For example, I visited a primary school to promote sustainable development. Through playing simple games with the children, we taught them the basic concepts of environmental protection. I also helped organise a campaign to protect trees growing from cracks in old walls, such as the endangered treed walls in Forbes Street [in Kennedy Town]. These treed walls have a long history and are also very beautiful. We applied to the Antiquities and Monuments Office to see if it could protect the treed walls. Through my experiences, I realised that there are many aspects to environmental protection work. It's not only about asking people to use less paper. There are tasks that are less direct but equally important to environmental protection, such as organising seminars, inviting government officials to talk to the public, and running activities to educate adults and children. The public, especially young people, is aware of the need to protect the environment. But it's not enough - more educational work can be done.'