The twenty-sixth session of the United Nations Environment Programme (UNEP) Governing Council/Global Ministerial Environment Forum was held at UNEP headquarters, Nairobi, from 21 to 24 February 2011. In keeping with section II of Governing Council decision 25/17 and the subsequent decision taken by the Bureau of the Council/Forum at its meeting in September 2010, the twenty-sixth session was held over four days.