… land rights , brought new economic forces to bear, and driven new soil , air , and water pollution and health concerns, all within the context of varying degrees of … land rights , brought new economic forces to bear, and driven new soil , air , and water pollution and health concerns, all within the context of varying degrees of … land rights , brought new economic forces to bear, and driven new soil , air , and water pollution and health concerns, all within the context of varying degrees of …