The energy sector is facing increasing pressures from climate change. All segments of the industry will be affected by the changing global climate and the policy responses to it. So says a briefing published jointly by the World Energy Council (WEC), the University of Cambridge Institute for Sustainability Leadership (CISL), the Cambridge Judge Business School, and the European Climate Foundation. The briefing brings into sharp focus the energy-related findings of the Intergovernmental Panel on Climate Change (IPCC) Fifth Assessment Report (AR5) for policymakers and business leaders in the energy sector. It identifies the need to incorporate climate change mitigation and adaptation measures into energy policy making, infrastructure planning, and investment decisions.