Energy & Science

These Australian Coal Mines Are Methane Super-Emitters

New estimates based on satellite data show Glencore’s Hail Creek mine spewed 230,000 tons of the powerful greenhouse gas a year in 2018 and 2019.

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Just inland of Australia's east coast, roughly 200 miles from the Great Barrier Reef, a single coal mine run by Glencore Plc emitted so much super-warming methane in a year that it had the same climate warming impact as the annual pollution from more than 4 million U.S. cars.

The Hail Creek coal mine leaked an estimated 230,000 tons of methane a year in 2018 and 2019, according to researchers with SRON Netherlands Institute for Space Research, who analyzed satellite data from the European Space Agency. Because methane traps over 80 times more heat than carbon dioxide in its first two decades in the atmosphere, the mine had the same short-term warming impact as roughly 19 million tons of CO₂ a year.