Wells possesses a PhD in Public Health from the University of the Witwatersrand. His main area of focus is on the risks that may emanate from exposure to chemicals on human populations and the environment. He has been involved in many research projects and consultancies in human health and environmental risk assessment of chemicals (especially radioactive substances, pesticides, heavy metals, and nanomaterials) as well as environmental impact assessment. He holds a Master’s Degree in Environmental Science from the University of Putra Malaysia and a bachelor’s Degree (BSc. Hons) in Chemistry from the University of Malawi. He joined the teaching staff of the University of Malawi (Malawi Polytechnic) in 2000, where he has taught courses such as EIA, water treatment, environmental chemistry, material sciences, and chemistry. At the Malawi Polytechnic, he has also undertaken research and provided consultancy services in climate change, EIA, and environmental auditing. He believes that the responsible use of chemicals and natural resources, and adequate consideration of the impacts of major projects on surrounding communities and the environment play important roles in sustainable development.