Eastern US cities spewing more methane into air than thought

WASHINGTON (AP) — Older U.S. east coast cities are leaking nine times as much natural gas into the air — from homes or pipes heading into houses — than the federal government had thought, a new airborne monitoring study finds.
Study co-author Eric Kort of the University of Michigan said Monday that it’s probably not a safety problem because what’s coming out doesn’t reach explosive concentrations, but the extra methane heading into the air is a climate change