A path to sustainable energy by 2030 (pp. 58-65)

        November, 2009 Scientific American | United States | renewables: solar

Mark Jacobson and Mark Delucchi show how wind, water, and solar can generate 100% of the world's energy by 2030, eliminating fossil fuels. Their plan includes 3.8 million wind turbines and 90,000 solar plants, as well as geothermal, tidal, and rooftop PV systems that undercut the cost per kWh of fossil fuels and nuclear power and is as cheap as coal.