This textbook provides an innovative pedagogy to students who will be the policy makers of tomorrow. It provides thoughts on sustainability and the complexity among its different dimensions. It guides students through experience, processes of complex decision making, and sharpen their clarity of thought, to enhance their communication abilities and help them develop critical thinking. It provides key competencies to address the complexities of sustainable development. By combining game-based learning with an analytical style of education, supplemental materials are provided to make the definitions of various sustainability aspects more concrete and allows students to experiment in a consequence-free environment, with scenario examples. Board Game and a hypothetical management course, dealing with various topics like transportation sustainability, societal metabolism, etc. as well as with decision making under those contexts, will formalize the mathematics neededto make robust decisions.