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  • RESEARCH HIGHLIGHT

Flying sensors snare vast amounts of a ‘fugitive’ greenhouse gas

Inventories sharply underestimate the quantity of methane wafting from six large US cities.
A manometer on pipes in a cellar, used to heat natural gas prior to modernization

An antiquated gas meter in a home. Large amounts of methane are seeping into the air from ageing gas-distribution networks in US cities. Credit: Karl F. Schöfmann/Alamy

Some of the largest US cities emit more than double the amount of the potent greenhouse gas methane than had been estimated, as shown by air samples collected on research flights.

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Nature 572, 8 (2019)

doi: https://doi.org/10.1038/d41586-019-02229-9

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