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| Today… |
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| • | 1.4B cattle….with a global impact on CH4
levels… |
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| • | SO2 release is
~160Tg yr-1…~2x all natural |
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| emissions… |
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| • | More N2 fixed
synthetically & applied as fertilizer |
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| than is fixed naturally in all terrestrial
ecosystems… |
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| • | Half of all
accessible freshwater is used by |
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| mankind…impacts on rivers, |
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| groundwater….depletion & contamination… |
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| . |
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