This class will examine key cross-cutting themes of sustainability and development through the framework of sustainability science. With its focus on use-inspired, basic, interdisciplinary research, the field of sustainability science has emerged as a foundational means to think through human-environmental relationships and social-ecological systems. Key thrusts in sustainability science – to bridge the gap between science and practice and across social, ecological, and professional sciences – are central to understanding and changing the trajectories of unsustainable development in many regions and countries, societies and communities, sectors, and markets. Students taking the course will (1) learn about the core principles of sustainability science and its antecedents, and (2) focus on four cross-cutting themes relevant to sustainability: Equity and justice, adaption to shocks, and transformational change, knowledge-action relationships, and governance of complex systems.