Peter is an expert in urban human-environmental systems and a lecturer at Kenyatta University, Kenya. He is a member of networks such as AlterNet, Ecosystem Service-Partnership, KAAD-Association of Scholars from East Africa (KASEA), National Geographic Society and the Society of Conservation Biology. Peter is an academic author and reviewer He has previously consulted for UN-ILO, Greenpeace Africa, and Civil Environmental Rights Groups as the Principal Investigator. Ongoing work is the UNESCO-Kenyatta University project called the Higher Education Development for Green Economy and Sustainability (HEDGES).