英语论文网

levels are actually causing global warming. In science, to even attempt to prove a particular theory, it is required that as many possible confounding variables, that is, variables that might have an alternative impact on the data, be eliminated (“Man Caused Global Warming Scientific Fact?”). There are many confounding variables related to global warming for which there is no account, such as irrigation, the ground ozone layer, changes in volcanic emissions, changes in methane emissions by plants due to genetic evolutionary driven changes, and changes in plant coverage, otherwise known as deforestation (“Man Caused Global Warming Scientific Fact?”, 2006).

 

Because of the lack of proven facts to support the idea that CO2 causes global warming, it can only technically be classified as a theory, but certainly not as a scientific fact. Since the theory of global warming is primarily based on assumptions, we propose that CO2 produced global warming is merely a belief.

 

An analysis of the earth's atmosphere reveals that estimates of the materials released by the earth are highly speculative. The earth's atmosphere is an open system which means that no one has any certain idea how many different materials are released by the earth. As there is no control over the confounding variables in an open system, all conclusions to experiments should be viewed skeptically. There are many confounding variables related to global warming for which there is no account, such as irrigation, the ground ozone layer, changes in volcanic emissions, changes in methane emissions by plants due to genetic evolutionary driven changes, and changes in plant coverage, or deforestation (“Man Caused Global Warming Scientific Fact?”, 2006). An example of a confounding variable is illustrated by a quote from Reid Bryson, Emeritus Professor, “In the first 30 feet of the atmosphere, on the average, outward radiation from the Earth, which is what CO2 is supposed to affect, how much [of the reflected energy] is absorbed by water vapor? In the first 30 feet, 80 percent, okay? ...: And how much is absorbed by carbon dioxide? Eight hundredths of one percent. One one-thousandth as important as water vapor,” (“Man Caused Global Warming Scientific Threat”). Carbon dioxide is only a drop of water in the whole bucket of confounding variables.

 

Another drop of water in that bucket is the fact that the sun's radiation has much to do with the earth's temperature changes. The following graph, from the Marshall Institute and Astrophyscial Journal, juxtaposes the relationship between solar activity and the temperature and the relationship between carbon dioxide levels and the temperature.

 

You can see that solar activity is correlating very well with temperature, meaning that both are rising and falling simultaneously. The graph also illustrates that over the last few years, temperatures have begun to decrease. Does this mean that we will have another Ice Age scare? No. The magnetic cycles of the sun actually help regulate the temperature on the earth.本论文由英语论文网提供整理，提供论文代写，英语论文代写，代写论文，代写英语论文，代写留学生论文，代写英文论文，留学生论文代写相关核心关键词搜索。