They put humpty dumpty back together again and you have this sort of consolation that the shape will be the same . '' South Africa 's sand dunes have been supporting a thriving ecosystem for centuries . Mining companies are eager to dig inside them for the minerals they contain . Environmentalists are campaigning for the protection of the massive dunes . Score: 6
South Africa 's sand dunes have been supporting a thriving ecosystem for centuries . Mining companies are eager to dig inside them for the minerals they contain . Environmentalists are campaigning for the protection of the massive dunes . Score: 6