Introduction to current trends in efforts to, address the environmental, social, and economic, challenges of the 21st century. How for-profit and, nonprofit entities, and innovative hybrids of the, two, have begun to address modern problems and, needs by supplying goods and services in new ways;, the role of government in promoting sustainability, through both traditional regulation and more, innovative approaches; how market-dependent, mechanisms such as product labels, private and, public certification schemes, and investment and, divestment strategies affect consumer behavior and, public policy. A number of guest speakers will, participate in classes over the course of the, semester.