Manholes In D.C. Are So Full of Methane They’re Ready to Explode

Manholes In D.C. Are So Full of Methane They're Ready to Explode

Washington, DC may not really have been built on a swamp, but it can’t escape the swamp gas. Scientists just published a survey that maps a whopping 5,893 natural gas leaks in the city’s aging pipelines.

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