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Abstract:Methane is a potent greenhouse gas, responsible for roughly 30\% of warming since pre-industrial times. A small number of large point sources account for a disproportionate share of emissions, creating an opportunity for substantial reductions by targeting relatively few sites. Detection and attribution of large emissions at scale for notification to asset owners remains challenging. Here, we introduce MARS-S2L, a machine learning model that detects methane emissions in publicly available multispectral satellite imagery. Trained on a manually curated dataset of over 80,000 images, the model provides high-resolution detections every two days, enabling facility-level attribution and identifying 78\% of plumes with an 8\% false positive rate at 697 previously unseen sites. Deployed operationally, MARS-S2L has issued 1,015 notifications to stakeholders in 20 countries, enabling verified, permanent mitigation of six persistent emitters, including a previously unknown site in Libya. These results demonstrate a scalable pathway from satellite detection to quantifiable methane mitigation.
| Subjects: | Machine Learning (cs.LG) |
| Cite as: | arXiv:2511.21777 [cs.LG] |
| (or arXiv:2511.21777v2 [cs.LG] for this version) | |
| https://doi.org/10.48550/arXiv.2511.21777 arXiv-issued DOI via DataCite |
From: Gonzalo Mateo-Garcia [view email]
[v1]
Wed, 26 Nov 2025 08:16:10 UTC (19,169 KB)
[v2]
Thu, 23 Apr 2026 09:03:03 UTC (20,851 KB)
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