Formerly: Minister of Environment of Nigeria; Special Adviser to the UN Secretary-General on Post-2015 Development Planning; Senior Special Assistant to the President of Nigeria on the Millennium Development Goals; Co-Founder and Head, Civil Society Action Coalition on Education for All; Founding Partner, Afri-Projects Consortium. Chief Executive Officer, Center for Policy Research and Development Solutions, Nigeria. Served on numerous international advisory panels and boards, including: Global Development Program, Bill and Melinda Gates Foundation; UN Secretary-General's Global Sustainability Panel; International Development Research Centre, Canada; African Population and Health Research Center.