... a large sheet of ice that moves very, very slowly. Some melting glaciers add more water to the ocean. Warmer temperatures also make water expand. When water expands in the ocean, it takes up more space and the level of the sea rises. Sea level may rise as much as 2 feet during the next century. This will effect both natural systems and manmade ... with preventing and treating health problems. Very young children and the elderly adults will run the highest risks. Gases in the atmosphere such as carbon dioxide and methane trap the sun's energy and warm the earth. This natural "greenhouse ...

• Word Count: 3240
• Approx Pages: 13
• Grade Level: Undergraduate