The prosperity of Hong Kong gives us a high standard of living but, at the same time, brings us many environmental problems. Most pollution is caused by the production of power and consumption of energy such as in electric power plants and running vehicles. The construction of infrastructure also produces many problems which require solutions by environmental engineers. The Environmental Impact Assessment Ordinance requires all major engineering projects be assessed in all environmental aspects before their commencement. Consequently, our society requires a large number of mechanical engineers who possess the knowledge in various modern energy production and conversion systems, as well as environmental awareness. Environmental engineering is a broad area and this feature is wee-reflected in the offered courses. They cover concepts and measurements of water and air quality, air pollution control, municipal and industrial wastewater treatment, solid and hazardous wastes, noise management etc.