Average temperature around the world have increased by 1.4 degrees Farenheight since the late 19th century. Not only is the earth warming, but it's warming faster, according to the United Nations Panel on Climate Change because 11 of the past 12 years have been warmer than most since 1850. The most obvious changes are occuring in the arctic because 20% of it has melted since 1970 leaving many polar bears and penguins with less food and less space to live. All of the ice may be gone by 2040 which means the animals that live there could become extinct. The coral reefs everyone loves to look at on vacation are also disappearing and dying due to changes in the water temperature. Some experts in the field also think that the extreme natural disasters and more frequent occurence of them is due to global warming.
National Geographic News. Global Warming Fast Facts. Retrieved February 21, 2008, fromhttp://news.nationalgeographic.com/news/2004/12/1206_041206_global_warming.html
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