Google Street View cars are roaming US cities in search of methane leaks

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Google Street Cars with methane sensors strapped to their roofs have been patrolling streets in the US to locate methane leaks.

Methane leaking from natural gas pipelines is a major environmental hazard, posing fire risks while pouring out the potent greenhouse gas into the atmosphere, which has an effect 80 times stronger than carbon dioxide, a study as found. The leaks are a huge cost to gas companies, which is often passed on to consumers.