2. Natural Resources There are many beautiful and valuable natural resources in Hong Kong and in the world. Photos from: http://www.rthk.org.hk/elearning/ecotour/ and http://www.cuhk.edu.hk/greencampus/en/http://www.rthk.org.hk/elearning/ecotour/http://www.cuhk.edu.hk/greencampus/en/

3. Natural Resources There are Eco-Tours hold by the Government in HK.

4. Ecology Ecology is the study of environmental systems, or as it is sometimes called, the economy of nature. "Environmental" usually means relating to the natural, versus human-made world; the "systems" means that ecology is, by its very nature, not interested in just the components of nature individually but especially in how the parts interact. (Full article can be found in http://www.eoearth.org/article/Ecology) http://www.eoearth.org/article/Ecology

5. Ecology According to the concept of ecology, each of the components are interacted with each others. To protect the valuable natural resources, we should aware on the importance of environmental management.

6. Environmental Management There are many books and videos discuss about environmental management or environmental protection.

7. Environmental Management As the environmental management becomes one of the social concerns, a number of valuable websites in this topic are found in the internet.