The Organisation's interest in EHS goes back to Objective 1 of the OECD Environmental Strategy for the First Decade of the 21s' Century that was adopted by OECD Environment Ministers in May 2001, and which already stressed the need to “remove or reform subsidies and other policies that encourage unsustainable use of natural resources — beginning with the agriculture, transport and energy sectors” (OECD, 2001). Objective 2 of the statement also emphasises the importance of “green tax reform”, which is of particular importance for tax concessions encouraging the production and use of fossil fuels.