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mike molyneaux's avatar

Hi Richard, H2O is one of the most powerful greenhouse gases and typically exists in the atmosphere at 10 times the concentrations of CO2 or methane. Extensive man-made irrigation systems added to man-made expanses of commercial crops and grazing fields have increased day-time ground temperature, adding more moisture to the atmosphere and causing at least 3 times more warming than CO2 or methane.

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Melanie Newfield's avatar

That's fascinating, thank you.

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