Greenhouse Gas Emissions

Agricultural production results in three greenhouse gas emissions of consequence. Nitrous oxide emissions come mainly from nitrogen applied to agricultural soils. Methane emissions come mostly from the digestive processes of ruminant animals, manure management and rice cultivation. Net carbon dioxide fluxes come mainly from fossil fuel use, production of fertilizers and other agro-chemicals, and soil management. Depending on whether only direct emissions are included, or whether indirect emissions from land use change and other sources are also counted, agriculture is credited for between 6 and 35% of global greenhouse gas emissions. Improved management and technology can help dramatically reduce GHG emissions from agriculture.

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