Wind power is the use of air flow through wind turbines to mechanically power generators for electricity. Wind power, as an alternative to burning fossil fuels, is plentiful, renewable, widely distributed, clean, produces no greenhouse gas emissions during operation, and uses little land. The net effects on the environment are far less problematic. Windmills may have been around for almost 1500 years, but it was not imagined that wind power would become affordable enough to compete with fossil fuels. Indeed it has. Wind energy is therefore "cheaper than any other new electric generation except natural gas which emits one pound of greenhouse gases for every kilowatt-hour of electricity it generates." The success of this energy is in part due to the fact that its costs have gone "down by more than 80% since the early 1980s." Even lower prices are expected, as "industry analysts see the cost dropping by an additional 20 percent.
Overall, the advantages of wind power heavily outweigh the disadvantages. Although it can only supplement other sources of energy for now, it provides skilled jobs for people in rural communities, replaces environmentally harmful energy sources, and is inexhaustible." It will never be subject to embargoes or 'price shocks' caused by international conflicts," and "unlike oil fields, wind energy is renewable, year after year, forever."