Global warming is a huge controversy in the world today and every day we are trying to solve the aspects of what caused it, how we can stop it, and if there really is global warming. Global Warming is an increase in the temperature of the Earth's atmosphere. The greennhouse gases has varied in passed years but it has recently been going up. The greenhouse gases going up is a result of burining of fossil fuels with industrialization, becuase of this the Earth's temperature has been going up. The four major greenhouse gases that have a huge part in this change are, Carbon Dioxide, Chlorofluorocarbons, Methane, and Nitrous oxide. Carbon Dioxide went up mainly because of the burning of fossil fuels such as coal and petroleum. Chlorofluorocarbons went up because of use of aerosol sprays and refrigeration which have been used world wide. Methane went up becuse of vegetation burning, which is associated with rain forest clearing, anerobic activity in flooded rice fields, cattle and sheep effluent, and leakage of pipelines and refineries which are connected with natural gas productions. Nitrous oxide went up becuase of chemical fertilizers.
The effects of global warming are computer models predict that if countries across the world do not change the emmision of greenhouse gases in the next few years global temperatures will increase 2 to 4 degrees Farenheit by the year 2030. This change in temperature is supposed to double in the year of 2100. This climate change has the potential to cause a huge shift in some major agricultural areas. Food experts are predicting a decrease in the production of grain by the year 2030. The warming of global temperatures will also cause rising sea levels as oceans warm and polar ice sheets and mountain glaciers melt.
There are also many controversies surrounding global warming in our world today. Many poloticians see the need for greenhouse gas controls, others resisted any action for fear that emission controls might stop bussiness, then it would slow down the economy, which will therefore increase the cost of living U.S. citizens. Many peple across the world do not believe that there is global warming. they do not believe that the world is being effected by these changes at all and we should just move on with our life and stop worrying about global warming. Those are some controversies in global warming today.
I got the information from my text book, and
http://topics.nytimes.com/top/news/science/topics/globalwarming/index.html?scp=1-spot&sq=global%20warming&st=cse#
Nytimes.com
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