Such practices have been developed and enriched through farmers’ knowledge of local agro-ecology and environmentally sustainable ways of farming. The introduction of ‘green revolution’ in the 1970s, has not replaced all traditional farms and many have resisted this unsustainable technology package.Around early 1980s, many farmers and local non-government organizations (NGOs) came together to establish the Alternative Agriculture Network (AAN) to foster sustainable agriculture activism in Thailand. The AAN provides a discussion forum of experience sharing and policy advocacy for sustainable agriculture, including organic farming. The AAN at present constitute the core of the organic and sustainable agriculture movement in Thailand.The early pioneers in organic project are the non-governmental organizations.