The inscribed terrace clusters continue to be worked and maintained in the traditional manner although other nearby terraces have been abandoned or have temporarily fallen out of use due to changes in climate and rainfall patterns in the terraces’ mountain watershed. In some villages, Christianization in the 1950s affected the performance of tribal practices and rituals that were essential in maintaining the human commitment that balances nature and man in the landscape; today, tribal practices coexist with Christianity. However, the terraced landscape is highly vulnerable because the social equilibrium that existed in the rice terraces for the past two millennia has become profoundly threatened by technological and evolutionary changes. Rural-to-urban migration processes limit the necessary agricultural workforce to maintain the extensive area of terraces and climate change has recently impinged on the property resulting in streams drying out, while massive earthquakes have altered locations of water sources and caused terrace dams to move and water distribution systems re-routed.