martes, 29 de marzo de 2011

Proves of Global Warming


Three main examples show that global warming is real. The first evidence is clearly visible at the poles where icebergs are melting down, increasing the sea level quickly. Isabella Velicogna, the study's lead author and a research scientist at Colorado University at Boulder's Cooperative Institute for Research in Environmental Sciences said: "The ice sheet is losing mass at a significant rate. It's a good indicator of how the climate is changing. It tells us we have to pay attention." The second prove involves migration of the species native of warmer zones into the "traditional" cooler environments, and as consequence of that the lack of control of foreign pests and diseases. For example, once confined to land near the equator, West Nile Virus is now found as far north as Canada, infected more than 21,000 people in the United States and Canada and killed more than 800. The third evidence is that the climate disorders increase the number of storms and hurricanes. Over the past century, the number of hurricanes that strike each year has more than doubled. Scientists blame global warming and the rising temperature of the surface of the seas. These examples show us that global warming is real, and is related to all people in the world to stop it.

Bibliography

The Washington Post (2006). Antarctic Ice Sheet Is Melting Rapidly. Retrieved from http://www.washingtonpost.com/wp-dyn/content/article/2006/03/02/AR2006030201712.html

Center of American progress (2007). The Top 100 Effects of Global Warming. Retrieved from http://www.americanprogress.org/issues/2007/09/climate_100.html

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