Nzioka J. Muthama is an applied meteorologist and a registered Lead Environmental impact Assessment Expert. He has research experience in areas of climate change, environment and policy. Muthama has won various awards which include the recognition by the Intergovernmental Panel on Climate Change (IPCC) for contributing to the Award of the Nobel Prize for 2007 to the IPCC. He has published over 60 scientific articles and book chapters and  has contributed to the understanding of the environmental risk management as regards air quality, climate, climate change, air pollution and policy. Muthama's current research is in sustainability metrics, monitoring and modelling, methodologies for the sustainability of the urban environment and other areas. He believes that the journey towards sustainable development is intertwined with the upholding of environmental integrity. Muthama received his Ph.D. degree at the University of Rome.