There is enough energy for people to reap from the wind to meet all of the world's power demands without radically altering the planet's climate, according to two independent teams of scientists.
Wind power is often touted as environmentally friendly, generating no pollutants. It is an increasingly popular source of renewable energy, with the United States aiming to produce 20 percent of its electricity by wind power by 2030. Still, there have been questions as to how much energy wind power can supply the world, and how green it actually is, given how it pulls energy from the atmosphere.
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