The book "Green Technologies for the Environment" brings together experts in the field of biotechnology, chemistry, chemical engineering, environmental engineering and toxicology from both academia and industry, to discuss green processes for the environment. The topics included finding replacements for crude oil to meet both our energy needs as well as the supply of chemicals for the production of essential products, advances in chemical processing, waste valorization, alternative solvents, and developments in homogeneous and heterogeneous catalysis as well as enzyme-based processes for chemical transformations. Advances in green chemistry concepts will further enhance the field through the design of new chemicals and solvents. In addition, obtaining a better understanding of the mechanistic pathways involved in various reactions is essential toward advances in the field. The goal of the work described in each of the chapters is to address the need for best practices for chemical processes and for the production of chemicals, while promoting sustainability.