McKinsey & Company, supported by ten leading global companies and organisations including The Carbon Trust, ClimateWorks, Enel, Entergy, Honeywell, Shell, Volvo, World Wildlife Fund, has assessed more than 200 greenhouse gas abatement opportunities across 10 major sectors and 21 world regions between now and 2030. The results comprise an in-depth evaluation of the potential, costs and investments. The potential exists to reduce emissions by just enough to stay on track until 2030 to contain global warming below 2º Celsius.