A U.S. oil-producing region is leaking twice as much methane as once thought

Wednesday, April 22, 2020 - 15:50 in Earth & Climate

Satellite data show that more than twice as much methane is leaking from a vast U.S. oil- and natural gas-producing region than previously estimated. From May 2018 to March 2019, a European Space Agency satellite measured an average of 2.7 teragrams of methane emitted each year from the Permian Basin, which spans more than 160,000 square kilometers in western Texas and southeastern New Mexico. Previously, ground-based estimates of the methane leaked from the region’s oil and gas activities were about 1.2 teragrams per year. The new estimate represents 3.7 percent of the total volume of natural gas being extracted from the Permian Basin, say Yuzhong Zhang, an atmospheric scientist at Harvard University, and colleagues. Such a leakage rate is 60 percent higher than the national average, and is also the highest rate ever measured from a U.S. oil- and gas-producing region, the team reports April 22 in Science Advances. Production in the Permian Basin has skyrocketed in the last decade; the region now...

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