UN: Nord Stream rupture may be biggest single climate-damaging methane release ever recorded
- Emissions may be higher than Mexico’s major oil and gas leak in December, which spilled 100 metric tons of methane an hour
- That is the equivalent of burning 1.1 billion pounds of coal, according to the US Environmental Protection Agency
The ruptures on the Nord Stream natural gas pipeline system under the Baltic Sea has led to what is likely the biggest single release of climate-damaging methane ever recorded, the United Nations Environment Programme said on Friday.
A huge plume of highly concentrated methane, a greenhouse gas far more potent but shorter-lived than carbon dioxide, was detected in an analysis this week of satellite imagery by researchers associated with UNEP’s International Methane Emissions Observatory, or IMEO, the organisation said.
“This is really bad, most likely the largest emission event ever detected”, Manfredi Caltagirone, acting head of the IMEO for UNEP, said. “This is not helpful in a moment when we absolutely need to reduce emissions”.
Researchers have not yet been able to quantify from the imagery the amount of methane leaking from the Gazprom-led pipeline system, but believe the rate of emissions is higher than from a major leak that occurred in December from offshore oil and gas fields in Mexican waters of the Gulf of Mexico, which spilled around 100 metric tons (221,000 pounds) of methane per hour, Caltagirone said.
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Swedish Coast Guard releases new video from Nord Stream gas leak
The Gulf of Mexico leak, also viewable from space, ultimately released around 40,000 metric tons of methane over 17 days, according to a study conducted by the Polytechnic University of Valencia and published in the journal Environmental Science & Technology Letters.