Book excerpt: This volume is a collection of informative chapters on various subjects. It provides information on the effects of pesticides on avian fauna, the impact of microbial ecosystems to solve environmental problems, a detailed review on issues in membrane distillations process, microbial sensor for detection of pollutants, microbial biosurfactants, biotechnological applications of immobilised microalgae as well as a review on Biochar production. Most importantly, this book contains a critical review on microbial degradation of plastic wastes and highlights the Biodegradation and Bioremediation of Herbicides.