Sustainable development has become a hot topic worldwide in recent decades. Following the Copenhagen Summit, politicians and the general public were once again faced with the reality of inevitable climate change. Is there anything we can do to stop global warming? Are there any possible ways to achieve the goal of zero carbon? What can we, as laymen in the global village, do in the coming years so that future generations can enjoy a natural environment similar to ours? This book consists of three parts. The first part is an introduction that provides a general overview of sustainable development in China, Singapore, the United Kingdom, the United States of America and Australia. The second part introduces the concept of sustainability in the built environment. The third part of this book focuses on sustainable land use planning in Hong Kong.