Climate change is one of the most significant challenges in human history. In recent years, it has become clear that our way of life is not 100% sustainable and that something needs to change. This course will introduce you to sustainability and the science behind it. We will cover a wide range of topics, including: climate change; electricity generation and its decarbonization; water scarcity and water harvesting; and the role of materials and their environmental impact, especially plastics. By the end of this course, you will have learned about the science underpinning these applications, including heat transfer, thermodynamics, mechanics, and materials science. More importantly, we hope you will walk away able to talk about sustainability and feeling inspired to create the changes necessary to make society more sustainable and save the world!