Articles | Volume 21, issue 2
Atmos. Chem. Phys., 21, 951–971, 2021
https://doi.org/10.5194/acp-21-951-2021
Atmos. Chem. Phys., 21, 951–971, 2021
https://doi.org/10.5194/acp-21-951-2021

Research article 25 Jan 2021

Research article | 25 Jan 2021

Aircraft-based inversions quantify the importance of wetlands and livestock for Upper Midwest methane emissions

Xueying Yu et al.

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Subject: Gases | Research Activity: Atmospheric Modelling | Altitude Range: Troposphere | Science Focus: Chemistry (chemical composition and reactions)
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Methane concentrations have doubled since 1750. The US Upper Midwest is a key region contributing to such trends, but sources are poorly understood. We collected and analyzed aircraft data to resolve spatial and timing biases in wetland and livestock emission estimates and uncover errors in inventory treatment of manure management. We highlight the importance of intensive agriculture for the regional and US methane budgets and the potential for methane mitigation through improved management.
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