In order to create a responsible, forward-looking energy policy, the United States will need to examine a number of important issues. Will the policy help meet America’s energy needs? Will it enhance national security? Will it contribute to a strong economy? Will it help meet America’s needs for a safe and healthy environment? In order to begin to answer these questions, World Wildlife Fund commissioned the Tellus Institute to consider the potential impacts of implementing a broad suite of clean energy policies over the next twenty years. This study analyzes the employment, macroeconomic, energy, and environmental impacts of implementing such policies.