The OECD and IEA recommend reforming fossil-fuel subsidies to improve the economy and the environment, according to a joint press release. Governments and taxpayers spent about half a trillion dollars last year supporting the production and consumption of fossil fuels. Removing inefficient subsidies would raise national revenues and reduce greenhouse-gas emissions, according to OECD and IEA analyses. The OECD has compiled the first-ever Inventory of Estimated Budgetary Support and Tax Expenditures For Fossil Fuels. With detailed information of over 250 mechanisms that support fossil-fuel production and use in OECD countries, the Inventory will be updated regularly and expanded over time to cover more countries and more support mechanisms. Fossil-fuel subsidies totaled US$ 409 billion in 2010 (about US$ 110 billion up on 2009), according to early data from the upcoming World Energy Outlook 2011, due to be published in November.