This evaluation is presented as part of the Effectiveness Review Series 2014/15, selected for review under the resilience thematic area. This report documents the findings of a quasi-experimental evaluation carried out in December 2014 that sought to assess the impact of the activities of the development and scale up of a climate change community-based adaptation model for food security project. Oxfam and local organization Earth Net Foundation (ENF) have worked together since 2004 to promote organic rice farming and fair trade marketing in Yasothon province. The project under review was also implemented in partnership with the Healthy Public Policy Foundation and Climate Change Knowledge Management and was carried out in two provinces – three sub-districts of Yasothon in the Northeast, and one sub-district in Chiang Mai in the North. The project had three specific objectives: 1) increase resilience and adaptation capacity of small scale farmers to weather variability and climate change through the development of a self-sustainable climate change adaptation model; 2) scale up implementation of the model to reach new communities and support national development of the agenda on climate change adaptation and food security; and 3) foster cooperation among NGOs, community-based organizations, scholars, local and central government and the private sector to achieve the other objectives.