This volume commemorates the Golden Jubilee Year of the establishment of Kirorimal College. This prestigious institution was honoured by the gracious presence of the First President of India, Dr. Rajindra Prasad who laid the foundation of the college building. This commemorative volume focuses attention on the growing awareness about plant ecology and environment biology. The different contributions present an up-to-date, detailed and balanced overview of the current knowledge within specific topics. Man has interacted with nature in various ways since the dawn of civilization. Primitive societies ensured that a proper balance was maintained. The situation has changed by the various developmental activities of man. We are losing our natural resources, biodiversity, genetic diversity, and are unable to manage nature. The consequences are becoming apparent in the form of drought, floods, depletion of the ozone layer, global warming, climate change, melting of snow, rising of water levels in coastal areas, desertification, etc. These concern ecologists/ environmentalists and should receive adequate attention by students who study ecology. In this volume, emphasis has been laid on areas such as Climate Change, Environmental Laws, Biodiversity Act, Intellectual Property Rights, Mineral Industry and Environment, Remote Sensing, GIS and the environment, Diversity and Distribution of wild relatives of crop plants, Sustainable agriculture, Management of Protected Areas, Wetland ecosystems, and Coastal Erosion. The volume is meant to serve as useful reference book for graduate and post-graduate students.