Since 2007 atmospheric methane concentrations have risen strongly; average rate 7 ppb per year. Methane’s Global-Warming Potential multiplies warming vs. CO2 by 34x, 86x, and 150-200x on time scales of 100 years, 20 years, and a few years, respectively. Total radiative forcing of methane is rapidly catching that of CO2, making Paris targets nearly impossible to reach without emergency actions. Here, and next video, I chat on latest methane science; including spatial and temporal variation, isotopic changes, emission locations, etc... Please donate at to support my work on many 100s of videos.
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