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How Greenhouses Work

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A question that comes to mind is how greenhouses work. The light is filtered through windows, but the heat and resulting oxygen is confined to the greenhouse? I believe that this situation does have a positive effect on growth.

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The greenhouse effect is a natural process. Sunlight passes through the atmosphere, warming the Earth's surface. In turn, the land and oceans release heat, or infrared radiation, into the atmosphere, balancing the incoming energy. Water vapour, carbon dioxide and some other naturally occurring gases can absorb part of this radiation, allowing it to warm the lower ...

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Regarding the issue of climate change and global warming

Regarding the issue of climate change and global warming: NOTE: This essay will have a minimum word requirement of 350 words.

Briefly define and describe the terms climate change and global warming, then....
In trying to balance the pro's and con's on the respective sides of this issue; provide one scientific statement and/or argument for your position and then provide one countering statement or argument from the other side. Provide some discussion for both positions. Please make sure that you include where you obtained your resource material. (Wikipedia.org is NOT an acceptable source)
i. For example: On one side Al Gore tells us that "a new scientific study shows that, for the first time, polar bears have been drowning in significant numbers." Yet, from another point of view, we learn that research published in 2001 by the Polar Bear Specialist Group of the World Conservation Union that of the twenty distinct subpopulations of polar bears, one or possibly two were declining in Baffin Bay while more than half of the subpopulations were known to be stable. In addition, there were two subpopulations that were actually increasing around the Beaufort Sea. (Now you can discuss these statements/positions) The Gore statement is from Gore and Melcher Media, 2006:146. The Polar Bear Specialist website is http://pbsg.npolar.no/default.htm (IUCN Species Survival Commission, 2001).

ii. The above example was taken from "Cool It, The Skeptical Environmentalist's Guide to Global Warming" by Bjorn Lomborg, 2007, Albert Knopf publishers....a very good, scientifically well balanced book. You might also check out the following websites for other perspectives on these issues:

iii. www.pewresearch.org; www.climatescience.gov; www.nrdc.org; www.sciencemag.org; www.greenpeace.org; www.eia.doe.gov; www.answers.com/topic/emperorpenguin; www.junkscience.org; www.unep.org.

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