Global Energy Sector Methane Emissions Estimated by using Facility-Level Satellite Observations
Dylan Jervis, Marianne Girard, Jean Philippe MacLean, David Marshall, Jason McKeever, Antoine Ramier, Mathias Strupler, Ewan Tarrant, David Young, Joannes Maasakkers, Ilse Aben, Tia Scarpelli
Source abstract
Methane emissions from energy sector facilities (oil, gas, and coal) represent a significant contribution to global greenhouse gas emissions with substantial mitigation potential. We estimate global 2023 methane emissions from energy sector point-sources using the high spatial resolution GHGSat satellite constellation. GHGSat detected 8.30±0.24 Mt yr-1 of methane emissions from 3,114 attributed emission sites. Detected O&G and coal emitting sites are found to be emitting 15% and 48% of the time, respectively, without significant continental variation. When comparing to the Global Fuel Exploitation Inventory (GFEIv3), GHGSat’s facility-level estimates comprise 12% of GFEIv3’s total emissions, or 24% over locations that GHGSat observed at least once, with good spatial correlation at the country scale but only weak spatial correlation at 0.2 x 0.2 degree grid cell scale.
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