Chile introduces world's first metro to be powered largely by renewables
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Public transportation offers a sustainable alternative to masses of individual automobiles, yet many systems still run on unsustainable power sources. Chile's is particularly extensive: around 2.2 million people ride the Metro de Santiago every day. This week, President Michelle Bachelet announced that the country's mass transit system will soon be 60 percent powered by renewable energy. This is an exciting step for South America's second largest subway system in terms of length. Chile's...