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Agricultural Matters
Teachers info sheet on cows and climate change
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<blockquote data-quote="N.Yorks." data-source="post: 7805068" data-attributes="member: 46426"><p>Hope you don't just focus on the carbon cycle. There's the N cycle that is running in the soil which sees a lot of N transformations. There's up to date research now saying that conventional arable, which doesn't actively increase soil carbon and relies on artificial N emits high levels of Nitrous Oxide a potent green house gas. However, the same work shows conservation/regen ag systems and organic systems as increasing soil carbon, however because there is more soil organic matter (C) the microbial breakdown of it releases large amounts of Nitrous Oxide, so cancelling out any gain in reducing atmospheric carbon.</p><p></p><p>Seems that we're just being too simplistic in solely looking at soil carbon - it isn't the big solution that we all hoped it might be.</p><p></p><p>Of course there are many benefits to having higher soil organic matter levels, which we all know about, so it's not a bad thing to do - but claiming a net reduction in global warming potential, not good, and misleading to suggest otherwise.</p></blockquote><p></p>
[QUOTE="N.Yorks., post: 7805068, member: 46426"] Hope you don't just focus on the carbon cycle. There's the N cycle that is running in the soil which sees a lot of N transformations. There's up to date research now saying that conventional arable, which doesn't actively increase soil carbon and relies on artificial N emits high levels of Nitrous Oxide a potent green house gas. However, the same work shows conservation/regen ag systems and organic systems as increasing soil carbon, however because there is more soil organic matter (C) the microbial breakdown of it releases large amounts of Nitrous Oxide, so cancelling out any gain in reducing atmospheric carbon. Seems that we're just being too simplistic in solely looking at soil carbon - it isn't the big solution that we all hoped it might be. Of course there are many benefits to having higher soil organic matter levels, which we all know about, so it's not a bad thing to do - but claiming a net reduction in global warming potential, not good, and misleading to suggest otherwise. [/QUOTE]
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