The course aims to nurture critical thinking of Environmental Issues and Sustainable Development, related to Hong Kong and the region. It introduces the environmental, planning, and other services provided by the Hong Kong government, societal actors and parties in the region and beyond. More importantly, it highlights the causes of and solutions to sustainability challenges, along scientific, political, economic and social dimensions. The course will explore the rationale, policies, and organization in forming synergies in the pursuit of better quality of life. Comparative case studies between Hong Kong and other metropolitan areas around the world will offer a global perspective to the students in assessing and synthesizing best practices. By taking the course, the students are prepared to engage in debating contemporary sustainability issues from a more informed, analytical perspective.