Our environment has been greatly damaged due to pollution and over exploitation of natural resources by human beings. All the natural ecosystems have been damaged to a great extent. Restoration of these damages is becoming a priority and of environmental interest. Science and technology of restoration ecology is rapidly evolving. Restoration requires a holistic approach. Restoration technology is now available to redirect the damaged ecosystems to their near natural integrity. In this context, this book is the first of its kind in reviewing the different approaches undertaken to restore various damaged ecosystems. Scientists currently working in this field have contributed their work in the form of reviews, site-specific case studies, technology for bioremediation and biodegradation. The book will provide first hand information in this currently expanding field and will be helpful to biologists, environmental scientists, engineers, wastewater treatment experts, microbiologists and all those interested in the conservation and management of the environment.