Nowadays, there are many problems that affect our world; one of the major problems is global warming which is became a title of many newspapers, magazines and news. I’m going to talk about global warming causes and my opinion about it.
In the atmosphere, there is a thin layer that helps to protect the earth, temperature, balances of air, water and also to save our life. This layer affected by Carbon dioxide, water vapor and methane that is collecting in the atmosphere like a thickening blanket, trapping the sun's heat and causing the planet to warm up. Burning fossil fuels such as coal, gases and oil contribute to increase Carbon Dioxide because we use it to transport by cars, trains, aircrafts, and est. and to get electricity. Also clearing forests helps to increase the level of Carbon Dioxide in the air.
On my opinion, global warming is a serious problem. So, we should work together to solve this issue to save our life and our planet. For example, we can reduce the number of cars, planting trees, encourage people to use other ways to move by use bicycles, Sledge and walking.
http://www.youtube.com/watch?v=z5NZXXeELd0&feature=related
http://www.nrdc.org/globalWarming/f101.asp#1
http://library.thinkquest.org/CR0215471/global_warming.htm