Ecological complexity and diverse ecosystems give Central and West Asia rich natural resources and hydrocarbon reserves. Countries in this region are exposed to climate change risks, and there is growing recognition that their carbon-intensive economies necessitate greenhouse gas mitigation. This report assesses the costs, benefits, and investment opportunities for greenhouse gas reduction in the energy and transport sectors of Azerbaijan, Kazakhstan, and Uzbekistan, and discusses indirect benefits of such reduction to human health and energy security. It gives policymakers, practitioners, and academics an overview of policy measures and technologies available for emission reduction, as well as scenarios of future emission trajectories in the three countries.