Economics can help us understand the relationship between the economy and environmental degradation and management. To enrich students’ learning in this area, this project will update and refocus an existing course, ECON240: Issues in Environmental Economics, to increase focus on sustainability. The redefined course, ECON240: Economics of Environmental Sustainability, will thoroughly address sustainability, including initial concept (i.e., defining the systems approach and a capital approach to sustainability), how economics approaches the underlying causes of environmental degradation, application towards environmental problems, and policy implications for sustainable economic development. The course will be designed for students with little or no background in economics and will explore complex interdisciplinary concepts related to environmental sustainability.