From sixty-nine varieties of local rice landraces, after a participatory varietals selection, they came up with eight improved varieties that are expected to be adapted to several climatic impacts, such as rainfall and long droughts. However, this also puts farmers in a situation of risk as they have fewer choices and they become dependent upon companies for provision of the improved varieties. Awareness, knowledge and dependence on a broader range of agricultural techniques reduces the risk of climate related losses from farms and increases the capacity to adapt income generating activities to changing weather conditions. Farmers have to adapt to changing situations in order to be able to survive and compete with others. They often have to shift from land-use practices based upon organic subsistence farming towards modernization and intensification. These modern systems can raise productivity of crops, but at the same time they are costly for local communities and expose them to risks of disruption of supplies of inputs or failures to access markets.