There are two types of causes for this problem, the first type is natural causes and the second type is man-made causes. Natural cause such as the methan gas or the greenhouse gas which is the gas that traps heat in the earth's atmosphere. However the man-made causes are much more than the natural causes these days beacuse of the technology. One of the man-made causes is pollution which comes in many shapes. Burning fossil fuels is one thing that causes pollution because fossile fuels produce CO2. Another cause of global warming is the population because more people means more food and more method of
transportation and more method of excretion.
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