CASE 2

Climate change, specifically global warming, has captured the attention of people worldwide and has inspired more debate and action—personal, political and corporate—than perhaps any other environmental issue in history.Global warming is the increase in the average temperature of Earth's near-surface air and oceans since the mid-20th century and its projected continuation. Global warming is the term used to describe a gradual increase in the average temperature of the Earth's atmosphere and its oceans, a change that is believed to be permanently changing the Earth’s climate forever. It is very serious threat to our way of life. There are many proven facts that demonstrate how global warming has afected certain parts of our planet.
Scientists have determined that a number of human activities are contributing to global warming by adding excessive amounts of greenhouse gases to the atmosphere. Greenhouse gases such as carbon dioxide accummulate in the atmosphere and trap heat that normally would exit into outer space.While many greenhouse gases occur naturally and are needed to create the greenhouse that keeps the Earth warm enough to support life, human use of fossil fuels is the main source of excess greenhouse gases. By driving cars, using electricity from coal-fired power plants, or heating our homes with oil or natural gas, we release carbon dioxide and other heat-trapping gases into the atmosphere. Deforestation is another significant source of greenhouse gases, because fewer trees means less carbon dioxide conversion to oxygen.
New technology makes a big help for us but it can be one of the causes of global warming which gives environmental pollution and this is also one of the causes of climate change. IT departments became the major source of negative environmental impact. New technologies such as electronics devices must be recycled because it contains toxic materials that can effect our greenhouse gases.
In order to avoid the predicted future climate of the earth we must try to help in preventing global warming. Let us take good care of the earth.