Since 2004, the Green Council has organized the Green Carnival annually and this event has become a popular public environmental education event in Hong Kong. Previous Carnivals held had won overwhelming response from students, teachers, and their families.

The Green Carnival aims to

1. Spread the message of green and low carbon living in daily life
2. Promote enviromental education through the informative and attractive booths
3. Provide enthusiastic environmental educators with up-to-date
4. Practical information for improving the environmental performance of the campus through a series of educational seminars