He also took key leadership role in addressing Africa's position towards the 2009 United Nations Climate Change Conference in Copenhagen (December 2009) and served as the Co-Chair of International Environmental Governance (IEG). Michuki led the Kenya delegation to the Durban Environmental Conference in South Africa on 28 November-9 December 2011 where he stated Kenya's determination to reduce the menace of global warming and called on the world's wealthy nations to assist the poor ones to mitigate the devastation of climate change. This turned out to be the Minister's last official assignment, having missed the 12th Special Session of the United Nations Environmental Programme (UNEP) Governing Council Global Ministerial Forum held in Nairobi on 20 February 2012.