Ayensu (PhD, U. of London, Vis. Fellow at Wolfson College, Oxford U.), is Chairman of the Board of Trustees, Africa Inst. for Math. Sciences (AIMS) Ghana; President, Energy Globe Foundation; Vice Chairman, Accra Inst. of Technology. Former positions: Chairman, World Bank Inspection Panel; Chairman, CSIR Ghana, Director and Snr. Scientist, Smithsonian Institution; Secretary General, Intl. Union of Biological Sciences; Senior Advisor and Director, Central Projects, African Development Bank; Commissioner, Energy Sector Management Assistance Program, World Bank. Awards: 2004 Medal for Biological Sciences, TWAS; US Natl. Museum of Natural History Award; Ghana Natl. Book Award; Ghana Natl. Science Award; Ghana’s Outstanding Statesman Millennium Award. His membership includes: Ghana Acad. of Arts and Sciences; Indian Natl. Science Acad.; African Acad. of Sciences. Has authored many books and monographs.