Honolulu

Environment

With close to 900,000 residents in less than 1,554 square kilometers (600 square miles), Oahu, once a pristine island, has suffered much environmental degradation. Sugar plantations and other agricultural activities have added to pollution problems. There is little air pollution, but the island remains sensitive to water pollution. Some of its beaches are in danger of erosion. However, the endangered green turtle has shown signs of recovery in Hawaii.