In recent years he has focused on the effects of climate and environmental change on malaria in the Western Kenya Highlands. He has established a Climate and Human Health Research Unit which has received funding from NIH, IDRC, USAID, WHO and several other funding agencies. Dr. Githeko has been a UN Intergovernmental Panel on Climate Change (IPCC) scientist since 1998 and has co-authored three of its reports.
Kwa miaka ya hivi karibuni amekuwa akiangazia matokeo ya tabia za nchi na mabadiliko ya mazingira kuhusu malaria katika milima ya Kenya Magharibi. Amethibitisha sehemu ya utafiti katika tabia za nchi na ya afya ya binadamu ambayo imefadhiliwa na NIH, IDRC, USAID, WHO na wengineo. Dr. Githeko amekuwa mwanasayansi wa ‘UN Intergovernmental Panel on Climate Change (IPCC)’ kuanzia mwaka wa 1998 na amehusika katika uandishi wa ripoti zake tatu.