Man-made Causes
of Global Warming
Man-made causes do the greatest damage. There are many man-made causes. Pollution is one of the biggest man-made problems. Pollution comes in many forms. Burning fossil fuels is one example that causes pollution. Fossil fuels are fuels made of organic matter such as coal, or oil. When fossil fuels are burned they give off a green house gas called CO2. Also mining coal and oil allows methane to escape. Methane is naturally in the ground. When coal or oil is mined you have to escavate the earth. When you dig up the fossil fuels you release the methane as well.
Another major man-made cause of Global Warming is the increase in population. More people means more food, and more methods of transportation. This means more methane is needed because there will be more burning of fossil fuels, and more agriculture. Another source of methane is manure. Because more food is needed we have to raise more animals. Animals like cows are a source of food which means more manure and methane. Another problem with the increasing population is transportation. More people means more cars, and more cars means more pollution. Also, many people have more than one car.
Since CO2 contributes to global warming, the increase in population makes the problem worse because we exhale CO2. Also, the trees that convert our CO2 to oxygen are being cut down because we're using the land as property for our homes and buildings. We are not replacing the trees (an important part of our ecosystem), so we are constantly taking advantage of our natural resources and giving nothing back in return.
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