Over the next several decades environmental sustainability will be a major challenge for engineers and society to overcome. This course is an introduction to environmental biotechnology focusing on how the applications of biotechnologies are impacting sustainability efforts in a variety of sectors including water systems, food and chemical production, and infrastructure construction. This course will provide a broad background in biological design concepts across scales from molecules to ecosystems, how bioengineering enables the design of new biotechnologies, and the ethical implications of engineering biology for use in the environment.