The OECD has developed an inventory approach to measure government support for fossil fuels across 44 countries. The inventory documents close to 1200 support policies provided in the form of direct transfers, tax expenditures, revenue foregone, risk transfers, and induced transfers. In 2017, OECD and partner countries provided around $140 billion in support, down 40% from the 2013 peak. However, broader IEA-OECD estimates found a slight increase in global support to $340 billion in 2017. Going forward, the OECD aims to expand the inventory's coverage, measure risk transfer costs, study the impact of support, and phase out inefficient subsidies by 2030 as part of UN Sustainable Development Goals.