As a member of ACI EUROPE (Airports Council International Europe) the Turkish Airports company TAV Airports Holding committed to reduce the carbon emissions in June 2008. In June 2009 ACI EUROPE launched the Airport Carbon Accreditation global standard for carbon management at airports. The programme aims to reduce greenhouse gas emissions via carbon and energy management. TAV Airports Holding is also a member of this Airport Carbon Accreditation Programme. The company operates four airports in Turkey, including Istanbul Ataturk International Airport. Istanbul Ataturk International Airport not only aims to reduce greenhouse gas emissions but also considers waste, water conservation and wastewater re-use.