Bachelor of Science, Moi University, Eldoret, Kenya, 1988. Master of Science, University Toronto, Canada, 1992. Doctor of Philosophy, University Toronto, Canada, 1999.
Lecturer Moi University, 1992—2000, senior lecturer, 2001—2006, associate professor, since 2007, head department, 2007—2008, dean faculty, since 2008. Consultant FORENCON Ltd., Eldoret, Kenya, since 1999.
Coordinator environmental education and hiv awareness Nature and Environmental Conservation Network, Kisumu, Kenya. Member of Forestry Society Kenya.
Married Beatrice Elungata. Children: Ida, Collins, Anna.