This report finds that transitioning to a clean energy economy that reduces climate risk is technically and economically achievable using commercial or near-commercial technology. It will create significant business opportunities for those willing to lead. From Risk to Return examines the many opportunities for both American businesses and investors to thrive in a clean energy economy. The report focuses on: The major technological and infrastructure changes necessary to shift to clean energy economy; The size and timing of capital investments, including comparison with the costs of inaction and other major recent investments in technology and infrastructure; and The affect of this transition on different sectors of the economy and regions of the country, including a focus on jobs.