Global warming, the term referring to the gradual increase of Earth’s temperature due to emissions of greenhouse gases, is occurring, but humans may not be at fault.
Since the existence of our planet, fluctuations in weather, temperature, and the atmosphere have frequently taken place. We as homo sapiens have had our share of storms, extreme temperatures, and even ice ages. We have never been able to pinpoint the exact reason for these happenings, but we do know that fluctuations will always occur in our environment.
According to NASA and several other scientific research facilities, global warming is happening. The Earth’s temperature has climbed over 1.4 degrees Fahrenheit over the past hundred years, and now the rate of temperature increase is growing, with the last twenty years being the hottest two decades in the past four centuries.
Many researchers argue that people themselves are the main cause of global warming. A report with work from over 2,500 scientists claim that industry, pollution, and deforestation are the main causes of global warming.
However, according to scientists at Accu-Weather, a popular commercial forecasting organization, ninety-eight percent of all greenhouse gas emissions are entirely natural, and man-made sources only take up a barely significant two percent. Accu-Weather also says that most emissions are from water vapor.
Dr. Robert Balling, a professor at Arizona State University, says that man-made emissions have had very little impact on global climate change. He states that global temperature has increased over the past century, but seventy percent of that increase occurred before 1940, which is when the upsurge of greenhouse gas emissions took place due to industrial processes.
The global climate is obviously changing at rapid speeds, but there are many variables to blame. Perhaps the Earth’s climate is naturally fluctuating just as it has for millions of years, and the global warming theory may just be a natural phenomenon.
Truth be known, there is little we can do to stop Mother Nature, so just sit back and enjoy the show, but be careful where you point your fingers.
Sunday, August 19, 2007
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