A new peer reviewed study confirms that leakages from natural gas infrastructure significantly drive up the industry’s greenhouse emissions.
were measured at 417 parts per million , making it 217x more abundant than methane in the atmosphere. Although methane does not usually get the same bad rap that carbon dioxide does, it’s actually a far more potent greenhouse gas, over than CO2 over 20 years and 28x more powerful on a 100-year timescale.
About 40% of the earth’s methane is thought to come from natural sources including wetlands and bogs. Many microbes that thrive in oxygen-deprived ecosystems like waterlogged wetland soils spew out methane instead of CO2, which leaks directly into the atmosphere. Some methane also seeps out of the ground in areas with high volcanic activity as well as naturally near some oil and gas deposits.
Cows and other grazing animals host trillions of gut-filling hitchhikers that help them break down tough grasses to access the nutrients. These anaerobic microbes account for about a quarter of the world’s annual methane budget. Other agricultural endeavors such as rice paddies, landfills and sewage treatment centers also produce significant amounts of methane.
Hitherto, most industries have estimated greenhouse gas emission by largely relying on paper-based calculations of what’s pouring out of smokestacks and tailpipes, as well as based on the amount of energy consumed by end users. But improvements in satellite technology are allowing researchers to actually stress test the data--and so far it’s revealing that oil and gas companies are more culpable than we thought.
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