Oil and gas production may be responsible for a far larger share of the soaring levels of methane, a powerful greenhouse gas, in the earth’s atmosphere than previously thought, new research has found.
The findings, published in the journal Nature, add urgency of efforts to rein in methane emissions from the fossil fuel industry, which routinely leaks or intentionally releases the gas into air.
“We’ve identified a gigantic discrepancy that shows the industry needs to, at the very least, improve their monitoring,” said Benjamin Hmiel, a researcher at the University of Rochester and the study’s lead author. “If these emissions are truly coming from oil, gas extraction, production use, the industry isn’t even reporting or seeing that right now.”
Atmospheric concentrations of methane have more than doubled from preindustrial times. A New York Times investigation into “super emitter” sites last year revealed vast quantities of methane being released from oil wells and other energy facilities instead of being captured.
The extent to which fossil fuel emissions, as opposed to natural sources, are responsible for the rising methane levels has long been a matter of scientific debate. Methane seeps from the ocean bed, for instance, and also spews from land formations called mud volcanoes.
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Adding to climate concerns, the Trump administration is moving forward with a plan that effectively eliminates requirements that oil companies install technology to detect and fix methane leaks from oil and gas facilities. By the Environmental Protection Agency’s own calculations, the rollback would increase methane emissions by 370,000 tons through 2025, enough to power more than a million homes for a year.
