Dirtmechanic
Garden Addicted
A history of humanure:
daily.jstor.org
So Nitrous Oxides are the 3rd most effective greenhouse gas behind methane and CO2. Released from microbial attack and oxidation of nitrogen fertilizer. Charts show advanced rates climbing with modern fertilizer usage.

A History of Human Waste as Fertilizer - JSTOR Daily
In eighteenth century Japan, human excrement played a vital role in agriculture. Can similar solutions help manage waste today?

So Nitrous Oxides are the 3rd most effective greenhouse gas behind methane and CO2. Released from microbial attack and oxidation of nitrogen fertilizer. Charts show advanced rates climbing with modern fertilizer usage.
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