1.   Chemical pollution threatens the survival of these animals.

2.   Pollution is threatening the future of the human race.

3.   Pollution is threatening the Marine life in the bay.

4.   For humans, the chemical pollution threatens our fertility, intelligence and our very survival as a species, the environmentalists say.

5.   He spoke of desertification taking over vital farmlands, a looming fresh water crisis, air pollution threatening the health of billions in megacities, among other problems.

6.   It is also threatened by pollution.

7.   Environmentalists have said the structure would disrupt the water flow and cut the supply of salt and oxygen into the Baltic Sea, where pollution threatens wildlife.

8.   Experts have warned that pollution has threatened the Caspian, which is home to rich fishing grounds, including caviar-producing sturgeon.

9.   Both are threatened by pollution, by falling stocks of fish and plankton and by fishermen, especially those using drift nets.

10.   Nuclear pollution threatens the region around the Dimona atomic power plant in southern Israel, public television said here Wednesday.