What social problems has the 3 Gorges dam caused?

Many problems accompany the project from the proposal to the finish. The early disputes stressed on the economic and technical factors. It was generally accepted that these two factors could not support the construction of the project and the problem of migration was hard to be settled. After 1980s, by the progress of reform and opening up policy, the problems over the project have largely covered politics, economy, environment, migration, tourism and the protection of the cultural relics.