1. a African Center of Excellence for Climate Smart Agriculture and Biodiversity Conservation, Haramaya University, P.O. Box 138, Dire Dawa, Ethiopia
2. b Department of Environment and Natural Resources, Kabale University, P.O. Box 317, Kabale, Uganda
3. c Department of Chemistry, College of Natural and Computational Sciences, Haramaya University, P.O. Box 138, Dire Dawa, Ethiopia
4. d Department of Civil and Environmental Engineering, Makerere University, P.O. Box 7062, Kampala 00256, Uganda
5. e Department of Social Work and Social Administration, Faculty of Arts and Social Sciences, Kabale University, P.O. Box 317, Kabale, Uganda