Global warming is defined as the increase in average temperature in the atmosphere, which causes changes in global climate patterns. Many people do not believe in global warming. They believe it is a cleverly designed hoax to gain political or financial support. I, on the other hand, do not agree. I have seen how we as people take the earth for granted. How we cut down trees, destroying the natural habitat of thousands of organisms, how industries pump poisonous chemicals into the air. And some intrinsic sense tells me that we cannot continue to in this manner without there being certain repercussions. WHAT ARE THE CAUSES OF CLIMATE CHANGE?
Global warming is, however, not solely the result of human activities. Climate change is also caused by natural occurrences. Our climate is influenced by changes in the intensity of the sun’s flares, changes in the earth’s orbit around the sun, volcanic eruptions and even the circulation of the earth’s oceans. Human activities are supposed to the primary cause of climate changes. The increase of greenhouse gases released into the atmosphere by the burning of fossil fuels used in cars, factories and for the production of electricity are considered to be the major reasons for global warming. Carbon dioxide is thought to be the main culprit. Another contributor such as Methane is released by grazing animals as well as fertilizers used in agriculture. Nitrous oxide is also used in fertilizers and in certain industrial processes. Deforestation and land use also results in higher CO2 levels in the atmosphere which would otherwise have been utilized by the trees during photosynthesis and converted into sugars and oxygen. The concentration of CO2 is said have increased by 36% since the 1750’s. Geological evidence indicates that the present carbon dioxide levels are higher than it has been for 20 million years. Some greenhouse gases can trap more heat than other carbon dioxide. However, none of them contribute as much to global...
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