Gas Utilities Reduce Leaks of Methane, Study Finds

http://rss.nytimes.com/c/34625/f/640333/s/44fdd7d4/sc/31/l/0L0Snytimes0N0C20A150C0A40C0A10Cscience0Cearth0Cgas0Eutilities0Ereduce0Eleaks0Eof0Emethane0Estudy0Efinds0Bhtml0Dpartner0Frss0Gemc0Frss/story01.htm

Researchers suggested that the reduction was largely a result of equipment upgrades, including replacement of leaky old cast-iron or unprotected steel pipe.

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