... . In addition, the clearing and burning of forests causes the pool of carbon which has been tied up in trees to be released. Deforestation is in part the result of population expansion in the tropics and the use of land for agriculture and wood for energy. Satellite photos show smoke from the smoldering fires that are rising into the air over ... natural variation of mean global temperature over periods of 200 to 200 years has been at most 0.5 to 1 C. This is smaller than the expected rise in mean global temperature for doubled CO2 by at least a factor of 4. The warming would be two or t...

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• Approx Pages: 11
• Grade Level: Undergraduate

... with the higher temperature (NATIONAL GEOGRAPHIC, 2005). It has been proven by researchers that flood is also an effect of global warming, and they found that global warming more than doubled the likelihood of floods occurring. Floods threaten humans' lives and also cost a lot of money. For example, there was a flood in the United Kingdom in 2000, which cost more than ... in the sea to find icy places for hunting and living, which impacts their reproductive capacities and the cubs' chances of survival (NatureCANADA.ca, 2012). The fact is that the population of polar bear has declined by...

• Word Count: 1061
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• Grade Level: Undergraduate

... photographs. Mountain glaciers are equipped to prove the warming due to the fact that seventy five percent of them are losing mass, while that rate that this is occurring has doubled in comparison to its own water equivalent. NASA photographs have proven that the level of sea ice has declined by two percent in ten years. Accu-Weather has recorded that ... rise to shallow coastal communities and human populations given the best estimate of sea level rise over the next hundred years by the existing evidence presented to us as a mass population by looking at the temperature increase. The s...

• Word Count: 763
• Approx Pages: 3
• Grade Level: Undergraduate