This encyclopaedia is unique in the sense that it presents contemporary ecology and environment in a chronological order for the first timer Not only it helps trace the process of evolution of regulatory framework for the global and national environmental legislations, it helps the readers to evaluate the development of national environmental consciousness vis-a vis the international one. This encyclopeadia will serve as most up-date register of international and national environmental conventions, agreements, and protocols in the field of ecology and environment. This encyclopaedia is in a way collection of ecology and environment oriented legal documents, which are of prime importance not only for the present generation but also for the future ones. It clearly provides the readers with most exhaustive reach to resource materials devoted to environmental rights and duties at national and global levels. This is also a testimony to the ever increasing public concern over the ecology and environment, thus accompanied by the mammoth literature on the said issue. This encyclopaedia can prove itself to be a milestone in this direction, a brief summary of past and upcoming environmental law making at national and global leveIs. This will certainly prove itself to be a genuine effort towards presenting g the most coherent and systematically assembled collection of primary material on ecology and environment and pollution in a most user-friendly chronological order.