- Examines how society makes decisions about energy, and how these decisions affect the environment and the economy. Uses tools from policy analysis, economics, and other disciplines to build an in-depth understanding of energy's role in U.S. contemporary society. Fulfills Cornerstone requirement of ENVS majors. Recommended prerequisites: ENVS 1000 and ENVS 3070 or PHYS 3070. Recommended corequisite: ENVS 3020.