This book contains 11 chapters. It includes the Environment, Heavy Metals and Toxicity, Bioremediation, Biosorption, Water Pollution Management, Environmental Biotechnology, Health Hazards of E-Waste Recycling, Sustainable Climate Change Protocol, Environmental Auditing, Role of PGPR in Cadmium Contaminated Soil, Microbial Profile of Rhizospheric Soil. All living-beings are immensely influenced by the surrounding around them. Since the surrounding in which they live is the environment, therefore each of the environmental element influences them. Intensification of agriculture and manufacturing industries has resulted in increased release of a wide range of xenobiotic compounds to the environment. Excess loading of hazardous waste has led to scarcity of clean water and disturbances of soil thus limiting crop production. The pollutants need to remove or reduce form the waste.