Global Methane Budget: Rapid Atmospheric Methane Rise Mostly From Agriculture and Fossil Fuels


Paul Beckwith

Published on Jul 27, 2020

Recent papers on the Global Methane Budget are vital reading. Atmospheric methane concentration is rapidly rising from 2 main sources; namely agriculture (mostly livestock) and fossil fuels (mostly fracking). Two basic approaches to study methane exist; 1) Bottom Up (BU) – individual gas sources are summed up to get total emissions, and 2) Top Down (TD) – satellite based sensors measure the atmospheric methane in columns of air and sum the individual readings to get a total. Since the start of the industrial revolution in 1750 the cumulative methane forcing is about 25% of the total, which is dominated by CO2

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