Monday, April 30, 2007

Causes of global warming



There are many causes for global warming. These causes could be man made or natural. In this essay, I will look at some of the main causes for this problem.

One of the main factors for global warming is carbon dioxide from power plants. Fossil fuels are gas, oil and coal. When fuels are burned, they give off CO2 and causes pollution. Another cause is pollution emitted from cars and trucks. More people mean more cars and more cars means more pollution. Nitrous oxide is another main factor for global warming. It's naturally produced by oceans and rainforests. Nitrous oxide is broken down in the atmosphere by chemical reactions that involve sunlight. Pollution from airplane is another issue for this problem. Yet another cause is deforestation. Burning and cutting trees is responsible for 25% of all carbon emissions entering the atmosphere. Methane is another main factor for global warming. Methane is more than 20 times as effective as CO2 at trapping heat in the atmosphere. Pollution from building also causes global warming.

To conclude, these are the main causes for global warming. Pollution from plant is one of the largest contributors to global warming.

Now, I'm going to talk about how carbon dioxide from power plant causes global warming.

The result of emissions of carbon dioxide and other greenhouse gases from power plants is one of the largest contributors to global warming. In this essay, I will give a brief description how carbon dioxide from power plants causes global warming.

Carbon dioxide is released into the atmosphere by burning of solid waste such as wood products and fossil fuels (oil, gas and coal). We run our plants by using energy from fossil fuels. However, burning these fuels is causing climate change and heating the earth to dangerous level. Scientists agree that our plants burn billions of tons of fossil fuels every year and build up large amount of CO2 into the atmosphere. This build up of CO2 threatens our environment and health.

In summary, as you can see, carbon dioxide from power plants causes global warming. So we have to look for other energy to replace fossil fuels in plants.

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