Renewable energy is very much in the limelight these days, as country after country experience how these sources can keep at par with fossil fuels. Various places have shown how renewables are capable of supplying a huge chunk of their electricity demand. Renewables do so much more, though, as a recent study published in the journal Nature Energy now shows. Analyzing the impact of solar and wind energy in the U.S, the paper’s authors focused on how these renewables have saved both lives and money during a nine-year period (from 2007 to 2015). By reducing greenhouse gas emissions, increased dependence in solar and wind energy sources have improved air quality in the U.S., at a rate that varies between region to region.