In the future, wind power is likely to become a major source of the world's energy supply. A. Wind farms have already produced sufficient amounts of electricity to suggest that wind power could become an important source of electric power. B. The wind energy produced by just a small number of states could supply all of the power needs of the United States. C. Wind power has several advantages, such as low pollution and projected cost declines, compared to other energy sources. D. Although wind power is not economical in areas with steady winds, alternative wind sources can be used to simulate wind power. E. Responding to environmentalists concerned about birds killed by wind turbines, analysts point to other human developments that are even more dangerous to birds. F. Smaller countries, which use less electricity than large countries, are especially suited to use wind power to meet all their energy needs.