Global Warming
Humankind is conducting an ongoing experiment to see what will happen to our health and to the well being of the planet when changes in the earth's climate are made. This experiment is called global warming. Global warming is allegedly changing the world, as we know it. The concern of global warming is the increasing temperature of the earth's climate, which is expected to warm even further because of human activities that include the burning of fossil fuels to run cars and trucks, heat homes and businesses, and power factories. These significantly change the atmosphere's amount of greenhouse gases. Advocates of global warming and its heating effects expect dire consequences; although, opponents of global warming beg to differ and challenge these claims. Evidence shows that the earth's climate has been warming, but it is far from certain that the temperature will rise. Despite this, the U.N. body that has been studying the possibility of global warming has forecast that, by the end of this century, the world's climate will be about 1.6 - 6.3 degrees Fahrenheit warmer than today and that precipitation worldwide will increase by about 7 percent with significant regional variation. The same U.N. body predicts that most of the
S Site maintained by Carnell Brian and Elizabeth, http://www.skepticism.net/global_warming/index.html, 1996-2000 S Houghton, John, Global Warming: the Complete Briefing, Lion Press, 1994 S EPA Global Warming Site, http://www.epa.gov. 2000 S Pearce, Fred, http://www.grand-tours.com/nsplus/insight/global/deadcows.html, 1996 S Site maintained by Zipperer, Rich, http://www.globalwarming.org S Thomas, Karl, http://www.sciam.com/0597issue/0597karl.html Climate change can affect ecosystems by altering the conditions that make them distinct. Most ecosystems exist within narrow ranges of temperature and precipitation. Changes in the frequency of storms, floods, droughts and high and low temperatures affect the species productivity. Indeed, any long-term trend toward a new climate regime will alter the location and species composition of the ecosystem. Biological productivity will also be affected and, hence, the sustenance of inhabitants of the ecosystem. In addition, climate change can alter the geographic range of microbes, insects and animals that feed on, or otherwise interact with, the higher plants of the ecosystem. (EPA, 2000) Global Warming may also affect photosynthetic microorganisms via ultra violet light rays. UV rays consist of a portion of the electromagnetic spectrum with wavelengths shorted than visible light. The sun produces UV, which i
Some common words found in the essay are:
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Approximate Word count = 924
Approximate Pages = 4 (250 words per page double spaced)
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