Methane Emissions from Fossil Fuels Much Higher than Previously Thought

Methane emissions from global fossil fuel production are up to 60 percent higher than previously estimated, according to a new study in the journal Nature by the National Oceanic and Atmospheric Administration and several universities.  Combined, methane emissions from oil and gas production and natural geological leakage are up to 110 percent greater than previously estimated.  The upward revision shows that the fossil fuel industry is responsible for 25 percent of total global methane emissions, or up to 165 million tons of the 623 million tons emitted from all sources.  The study comes at a time when companies are working to reduce methane leaks from extraction facilities and pipelines, with some success.  The scientists found leak rates have declined from 8 percent to 2 percent over the past 30 years.  Increased natural gas production, however, has negated these improvements.

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