What are the major greenhouse gases from agriculture?

Major greenhouse gas emissions from Australian agriculture include:

  • Enteric fermentation releases methane into the atmosphere when ruminant animals such as cattle and sheep belch. Methane is a greenhouse gas that comes from sources such as wetlands, natural gas systems and animals. There is 25 carbon dioxide equivalent units for every one unit of methane.

  • Agricultural soils mainly emit nitrous oxide when converting soil nitrogen into nitrate (nitrification) and nitrogen gas (de-nitrification). Nitrous oxide is a greenhouse gas that comes from sources such as agriculture, fossil fuel combustion and industrial processes. There is 298 carbon dioxide equivalent units for every one unit of nitrous oxide.

  • Savanna burning includes both methane and nitrous oxide emissions that are excessively released into the atmosphere and not able to be re-absorbed by the landscape.


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