WHY IS IT DANGEROUS
 
                                    
                                              Car exhaust releases carbon dioxide.
 
Global warming is dangerous, because it heats the earth in places its not supposed. So it upsets the balance of nature, which leads to different animals coming to different areas of the world.
 
Raising global temperatures are expected to raise sea level, and change precipitation and other local climate condition. Changing regional climate could alter forests, crop yields, and water supplies. It could also theater human health, and harm birds, fish, and many types of ecosystems. deserts may expand into existing range lands, and the character of some of  some of our national Parks may be permanently be altered. Unfortunately, many of the potentially most important impacts depend upon whether rainfall increases or decreases, which can not be reliably projected for specific areas.

  Rising global temperatures could bring more floods and severe weather. They may allow for the wider spread of tropical illnesses like dengue fever, scientist warned Monday.
 
 People at Johns Hopkins University in Baltimore used computers to model the general circulation of the Earth's weather patterns and checked changes against where dengue fever is prevalent
 
 Dengue fever is already the most widespread viral infection transmitted to people by insects. It causes fever, swelling of the lymph nodes and bleeding, along with severe muscle aches, and can be fatal. There is no vaccine or specific treatment.

 The last major epidemic of dengue  fever was in Glavestone, Texas, in 1922, when more than 500,000 fell sick. The last U.S outbreak was also in Texas in 1995.
 
 If we do not reduce our emissions of greenhouse gases, it is predicted that the global average temperature could rise  to about 3 degrees to 8 degrees F in the next 100 years. Patterns of rainfall and snowfall may be changed permanently. Also plants and animals may not be able to adjust to the new climate.
 
 
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