The University of Dar es Salaam in Tanzania through the Institute of Resource Assessment (IRA) implemented a three years research program to study the implications of climate change on natural and social systems in three agro-ecolocilal zones in Tanzania. The paper presents findings obtained from one of the zones studied. The study was conducted in two villages: Upungwe and Mbogwe located in Nzega District, Tabora region. Interviews with a sample size of 99 people – 10 per cent of the total number of households – were used. A total of 40 people were involved in focus group discussions – 20 from each village.  Findings show that different ethnic groups have moved into villages in response to climate change impacts in their areas of origin. The crops most affected were cotton, rice, cassava, sweet potatoes, groundnuts and maize, respectively. The authors recommend that in order to strengthen adaptation rural-urban, urban-rural and rural-rural linkages needs to be facilitated so that products and information can flow from all ends.