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This is a fair distinction, but artificial fertiliser still requires fossil fuels to produce and so isn't sustainable even if it has zero negative impact on the
by SuoDuanDao 6y ago
This is a fair distinction, but artificial fertiliser still requires fossil fuels to produce and so isn't sustainable even if it has zero negative impact on the soil's health.
- hedora 6y agoArtificial fertilizer doesn’t require fossil fuel. It requires energy, atmospheric nitrogen and hydrogen: https://en.m.wikipedia.org/wiki/Haber_process https://en.m.wikipedia.org/wiki/Haber_process Roughly 50% of the nitrogen in average humans was extracted from the atmosphere using this process; it is well-established.
- SuoDuanDao 6y agoInteresting - so theoretically one could run the process off photovoltaics? Didn't know that! Still, if we had to change to renewable sources of energy to run these processes tomorrow,the price would likely jump so enormously that their value would be mostly in niche applications.