This study was carried to find out the impact of PES (Payment for Environmental Services) on the welfare of the communities in the Uluguru Mountains. The aim of the study is to assess the main objectives of the PES project which is to conserve the environment (forest) and reduce poverty. The assessment of the project is done by looking on the difference between the treatment group (those who participate in PES) and control group (households who do not participate).

Community-based drinking water organizations (CBDWOs) are the most important providers of water in rural areas of the developing world. They are responsible for coping with future threats due to climate change, besides other non-climatic drivers of change such as demographic growth. The inherent capacities of CBDWOs to adapt to external drivers of change would be greatly conditioned by their capacities to initiate and catalyze collective processes.