project paperClimate variability and climate changeifpri project note | 2010 | by Mario Herrero, Claudia Ringler, Jeannette van de Steeg, Philip Thornton, Tingju Zhu, Elizabeth Bryan, Abisalom Omolo, Jawoo Koo and An Notenbaert Characteristic of much of Sub-Saharan Africa, Kenya is highly vulnerable to climate change.