EDF and Google have released new interactive maps that show Pittsburgh residents just how much methane may be escaping from city pipelines.

Methane is the main component of natural gas. Millions of families across Pennsylvania and the country depend on it to heat homes and prepare their dinners. But when leaked into the atmosphere, it can wreak havoc on our climate, represent millions of dollars' worth of wasted American energy, and pose serious risks to public health and safety.

That's why we spent the past year working with Peoples Gas in Pittsburgh to use Google Street View mapping cars specially equipped with state-of-the-art methane sensors to determine how many pipeline leaks there are, how much methane is leaking, and where these leaks are located.