In this Jan. 7, 2016, file photo, a sign declares the boundary line of the Southern California Gas Co. gas fields where a gas well was leaking methane daily near the community of Porter Ranch in Los Angeles.
In this Jan. 7, 2016, file photo, a sign declares the boundary line of the Southern California Gas Co. gas fields where a gas well was leaking methane daily near the community of Porter Ranch in Los Angeles. Michael Owen Baker AP
In this Jan. 7, 2016, file photo, a sign declares the boundary line of the Southern California Gas Co. gas fields where a gas well was leaking methane daily near the community of Porter Ranch in Los Angeles. Michael Owen Baker AP

The Public Eye

February 06, 2016 4:01 PM

Largely invisible network of pipelines, gas storage presents regional methane risk

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