Globally recognized key role of environment for sustainable development is opening new vistas in the research fields of environmental sciences. In view of the part played by agriculture in environmental pollution, world attention, nowadays, is sharply focused on regular environmental monitoring and development of eco-friendly technologies in R & D programmes. This book, compendium of thoroughly researched excellent and multi-faceted articles addresses, among others, the burning topics on emerging frontiers of environmental challenges, biotechnology in agriculture and crop production, pesticide residues, industrial pollution of agricultural ecosystems, rehabilitation of degraded aquatic and forest ecosystems, climate change and erosion of biodiversity. The contributors include leading agriculture experts, distinguished academicians and scientists. It is hoped that the wide readership of the book would merit its place on the shelves of libraries, and institutions pursuing research in environmental sciences.