Global Warming- Reasons For Global Warming
Tuesday, September 18th, 2007 by Global Warmer Subscribe To Our Feed
Earth’s temperatures have varied throughout time. This is a normal event which can be affected by (for example) such things as volcanic eruptions or the amount of energy the sun is releasing. However, studies have shown that since the arrival of the Industrial Revolution around the late 1700s our activity has played a role in adding to the natural gases leading to the Earth’s warming.
What is Greenhouse Effect?
Greenhouse Effect refers to the covering the atmosphere provides the Earth. Much like greenhouses that grow plants safely in wintertime, it works by the glass letting sunlight through but keeping the warmth inside. Earth’s atmosphere does the same for all of us. The natural cycle of energy absorbed by the Earth, and the expelling of energy-absorbing gases into the air provides the Earth a protective blanket of atmosphere. Without this atmosphere the planet would be too cold to live on.
A problem occurs when excess gases are released and retained in the atmosphere. The main greenhouse gases include water vapor, methane, carbon dioxide, and nitrous oxide. Water vapor is the major component in the atmosphere and is in a constant state of flux. It will change due to any prolonged period of precipitation and evaporation. Carbon dioxide however is a long term gas that can stay there for years.
Studies that focus mainly on the past 50 years show us that the makeup of the atmosphere is changing. Since the start of industrial growth the use of fossil fuels such as oil and coal have greatly increased the amount of carbon dioxide in the air. One example of how fast this increase can happen is in China.
Currently, it is the biggest user and producer of coal. In the next few years it is predicted that it will surpass the U.S. as the world’s greatest producer of carbon dioxide. China plans to continue to cope with its industrial growth by building a new coal burning power plant each week over the next 5 years. It also claims to lack the technology required to control the emissions. But with the needs of their population making increasing demands there doesn’t appear to be a simple solution.
There is no question that higher concentrations of greenhouse gases have been increasing in step with industrial growth on Earth. These gases are doing their job of trapping more heat in the atmosphere: and Global Warming is the result.
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