This report estimates fossil fuel subsidies to be around USD 425 billion. Such subsidies represent large lost opportunities for governments to invest in renewable energy, energy efficiency and sustainable development. Removal of consumer subsidies can lead to carbon emission reductions (6 to 8 per cent by 2050 globally), Reductions that can be improved further with a switch or a "SWAP" towards sustainable energy. This report describes the scale and impact of fossil fuel subsidies on sustainable development. It describes the SWAP concept to switch savings made from fossil fuel subsidy reform, towards sustainable energy, energy efficiency and safety nets. The report provides potential SWAP outlines for Bangladesh, Indonesia, Morocco and Zambia. "Making the Switch" was written for the Nordic Council Ministers by the Global Subsidies Initiative of IISD and Gaia Consulting.