The difference between Ozone Depletion and Global Warming Ozone Depletion The Ozone Layer is a region of the atmosphere from 19 to 48 km (12 to 30 mi) above the Earth’s surface. Scientists were concerned when they discovered in the 1970s that chemicals called chlorofluorocarbons, or CFCs—long used as refrigerants and as aerosol spray propellants—posed a possible threat to the ozone layer. These chlorine-containing chemicals rise and are broken down by sunlight. The chlorine reacts with …showed first 75 words of 668 total…

…showed last 75 words of 668 total…the depletion of trees. Only humans can cut down trees or burn forests. Nitrous oxide usage can reduced by not using nitrogen-based fertilizers. It can also be prevented by using fossil fuel power plants for electricity less and less. Nitrous oxide also comes from automobile exhaust. The Greenhouse Effect is probably the most serious problem on Earth. By reducing greenhouse gas emission usage little by little we can help the environment by preventing Global Warming.