I&#x27;m following the CO₂ emissions discussion less closely than I should, but agricluture generally (broadly scoped, including forestry) is a major contributor. Soil has considerable carbon content, and that can be and is released through human activity and disruption.<p>Livestock account for 18% of CO₂ emissions, agricluture 8% (75% of that from production of ag chemicals -- pesticides and fertiliser).<p>US EPA gives 9% of total CO₂ emissions as from agriculture:<p><a href="http:&#x2F;&#x2F;www.epa.gov&#x2F;climatechange&#x2F;ghgemissions&#x2F;sources&#x2F;agriculture.html" rel="nofollow">http:&#x2F;&#x2F;www.epa.gov&#x2F;climatechange&#x2F;ghgemissions&#x2F;sources&#x2F;agricu...</a>
<a href="http:&#x2F;&#x2F;www.epa.gov&#x2F;climatechange&#x2F;images&#x2F;ghgemissions&#x2F;sources-agriculture.png" rel="nofollow">http:&#x2F;&#x2F;www.epa.gov&#x2F;climatechange&#x2F;images&#x2F;ghgemissions&#x2F;sources...</a><p><i>Nature</i> puts the level at ⅓ worldwide:<p><a href="http:&#x2F;&#x2F;www.nature.com&#x2F;news&#x2F;one-third-of-our-greenhouse-gas-emissions-come-from-agriculture-1.11708" rel="nofollow">http:&#x2F;&#x2F;www.nature.com&#x2F;news&#x2F;one-third-of-our-greenhouse-gas-e...</a><p>Deforestation: 6-17% of anthropogenic CO₂ emissions:
<a href="http:&#x2F;&#x2F;www.nature.com&#x2F;nclimate&#x2F;journal&#x2F;v2&#x2F;n3&#x2F;full&#x2F;nclimate1354.html" rel="nofollow">http:&#x2F;&#x2F;www.nature.com&#x2F;nclimate&#x2F;journal&#x2F;v2&#x2F;n3&#x2F;full&#x2F;nclimate13...</a>