This document discusses policy options for transitioning to a low-carbon economy by 2050. It explores sustaining economic growth while transforming energy production and consumption. The presentation builds on previous publications by identifying policy ideas without prescribing specific approaches. It discusses challenges like uncertain development pathways and high/low carbon scenarios. Milestones by 2025 include efficiency gains, commercializing carbon capture and storage, renewable deployment, and vehicle efficiency. National policy frameworks and international cooperation on technology and emissions management can help achieve long-term climate goals.