The integration of environmental and social practices is crucial to address environmental crises, including climate change, pollution, resource scarcity and social wellbeing. Amidst the emergence of greenwashing practices that falsely claim environmental preferability, Life Cycle Assessment (LCA) and Carbon Footprinting have become essential tools for providing quantitative evidence of a product's or system's environmental and social impact. This course takes a systems-thinking approach to sustainability issues and explores the application of LCA in a range of areas, including technology development, environmental reporting, investment, and policymaking. By doing so, students will gain a comprehensive understanding of the impact of products and systems over their entire life cycle and learn how to make informed decisions to achieve sustainability goals. The course teaches students the concepts, methodology, and software skills needed to conduct LCA projects and interpret LCA reports. Students will be equipped to apply LCA to promote sustainable development in various contexts.