The World Is Warming

Abstract

The evidence is clear. Wherever there is permanent ice--Greenland, Antarctica, the Alps, the Himalayas--that ice is melting. Anybody who has been to high mountains will have noticed this fact. Scientists agree that the cause for this melting is very simple： The earth＇s atmosphere is warming up, The melting ice, in turn, is causing sea levels to rise as the extra water from the melting ice pours into the oceans. Already, sea levels have risen about 8 inches （20cm） in recent years, and scientists believe they could rise at least another 20 inches （50cm） by the year 2100. This could put many heavily populated coastal areas at risk. Coastal Florida, the Nile Delta, Bangladesh, and many other areas would end up under water.