sábado, 9 de abril de 2011

A Real Problem: Global Warming




A Real Problem: Global Warming

Global warming is a fact, and we have three examples that can prove it. The first example is the ice melting, which is a problem that brings so many negative consequences to us. Scientist and international organizations have been development some studies to show people how big this problem is, and that we need to do something to stop it. Japan Agency for Marine-Earth Science and Technology and the Japan Aerospace Exploration Agency reported that “Arctic ice was melting at a far quicker rate than anticipated”. The change in precipitation patterns is another example that shows how world is changing because of the global warming. According to the Union of Concerned Scientist, observations for the last 100 years indicate that extreme precipitation events (more than 2 inches in 24 hours) in the United States have increased by about 20% (Karl and Knight, 1998). Increases in heavy precipitation have also been reported for Japan and northeastern Australia. A raise in the intensity of precipitation intensifies flood potential. Finally, we could mention as an example the elevation of temperature. The Solo Ciencia Magazine analyzed weather and fire for six years by satellite and realized that, in dry years, the practice of using fire to clear forests is increased, releasing large amounts of extra carbon dioxide. These results show the importance of stop the deforestation (Randerson, James, 2011). The link between drought and deforestation is very slim. Droughts and forest vulnerability aggravate if the weather temperature gets warm; therefore, the volatility of the stored carbon causes the combustion process and as a consequence we will have forest fires. As we can see, Global Warming is real, and we need to do something if we want to conserve life in earth.

Bibliography

· Japan Agency for Marine-Earth Science and Technology and the Japan Aerospace Exploration Agency. “Why is Arctic ice melting 50 years too fast”, Howstuffworks. 7 Jan 2011 . <<http://science.howstuffworks.com/environmental/earth/geophysics/arctic-ice.htm>>

· Karl and Knight. “Early Warning Signs of Global Warming: Downpours, Heavy Snowfalls, and Flooding”. Union of Concerned Scientists. 7 Jan 2011. <<http://www.ucsusa.org/global_warming/science_and_impacts/impacts/early-warning-signs-of-global-3.html>>

· Randerson, James. “Contribution of drought and deforestation to global warming”, review on February, 9th. <>.

· Youtube videos: http://www.youtube.com/watch?v=oJAbATJCugs


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