Global warming is the result of several causes. In the following I am going to look at the various reasons that have led to this development. The first point worth mentioning is carbon dioxide emitted from cars heats up the atmosphere. A further point to consider in the greenhouse. This greenhouse is one of the major causes for global warming. The greenhouse increases the temperature in the earth. Another reason is the factories, because of the gases and pollution that came out from factories are damaging the Ozone layer. The amount of CO2 in the earth’s atmosphere has increased by 31% in the past 100 years. Yet another reason is Large areas of forest are cut down by logging companies. The rise in world temperatures will result in changes to animal habitats. Tropical species are likely to appear in Europe and North America.
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