In this world around us, there are two things that do not belong to any one country: air and ocean water. In both the air and the water, there is much pollution. People are concerned about the air and the water used by everyone, and they are also concerned about the future of the Earth. One of the most important pollution problems is in the ocean. Many ships sail in the ocean water - fishing ships, some ships carring people, some carring oil. If a ship loses oil in the water, or trash from the ships is put into the ocean, the water becomes dirty. Many birds and fish die because of the pollute water. Many fish are dying in the sea, others are getting contaminated. Fishermen catch contaminated fish which may be sold in markets and people may get sick from eating them. Lakes and rivers are getting pollute, too.