Perhaps in anticipation of California's coming ban on small combustion engines, battery-powered electric lawn mowers have begun to appear in the market. At least one model is equipped with built-in solar power.From pv magazine USA Small combustion engines, due to their much lower efficiencies, spew much greater volumes of pollution on a per unit scale. In fact, the division chief at the California Air Resources Board was quoted as saying, 'We [California] expect that ozone-contributing pollutants from small off-road engines [SOREs] will exceed those same emissions from cars around the 2020 time ...Den vollständigen Artikel lesen ...