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Google Street View cars have mapped methane gas leaks in big US cities
Google's Street View cars aren't just useful for scouting out a locale in advance -- they might be saving the planet, too. The vehicles have just helped the Environmental Defense Fund publish methane gas leak maps for Boston, Indianapolis and New York City's Staten Island. The Google cars roamed around cities using sensors that could detect both the location and scale of one of the dangerous leaks, driving by at least twice to make sure the results weren't a fluke. Depending on where you live, the data is either reassuring or scary; the older pipes in Boston and Staten Island have an abundance of leaks, while Indianapolis' more recent infrastructure is keeping the problems to a minimum.
