The UN Environment Programme (UNEP) DTU Partnership (UDP) has published a report, titled 'The Multiple Benefits of Measures to Improve Energy Efficiency,' analyzing the various benefits of national energy efficiency programmes. The report comes as Parties to the UNFCCC are preparing their national climate action plans for the 21st session of the Conference of the Parties (COP 21). UDP highlights that energy efficiency is a critical mitigation option for meeting emission reduction commitments. The report combines energy modeling with a survey of 25 national energy efficiency programmes, projecting energy use and greenhouse gas (GHG) emissions to 2030 globally and for Group of Twenty (G20) countries. According to the findings, well-designed programmes not only lower GHG emissions but also provide health and well-being, energy security and employment benefits.