Wind energy essay 
WIND ENERGY Long time ago, ancient mariners used sails to capture the wind and explore the world. Farmers once used windmills to grind their grains and pump water. Today, more and more people are using wind turbines to wring electricity from the breeze. Over the past decade, wind turbine use has increased at more than 25 percent a year. Still, it only provides a small fraction of the world 's energy. Therefore, wind power or wind energy is the energy extracted from wind using wind turbines to produce electrical power, windmills for mechanical power, windpumps for water pumping, or sails to propel ships. Even though wind energy is being used worldwide lately, there are some pros and cons relates to this type of energy. Wind energy is known as a free, renewable resource, so no matter how much is used today, there will still be the same supply in the future. It is also a source of clean, non-polluting, electricity. Unlike conventional power plants, wind plants emit no air pollutants or greenhouse gases. According to the U.S. Department of Energy, in 1990, California 's wind power plants offset the emission of more than 2.5 billion pounds of carbon dioxide, and 15 million pounds of other pollutants that would have otherwise been produced. It would take a forest of 90 million to 175 million trees to provide the same air quality. The creation of wind energy is "clean". Unlike the use of coal or oil, generating energy from the wind does not produce pollutants or require any harmful chemicals. Moreover, Wind is free. If you live in a geographical location that receives plenty of wind, it is there for the taking. As a renewable resource, wind can never be depleted like other natural, non-renewable resources. The benefits of using wind energy is still going. For examples, the electric company may end up owing you if you generate more electricity than you need from wind power; it can be fed back into the grid and you 'll receive credit. Besides, The cost of producing wind
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