Impact of Rice production on Climate Change
Impact of Rice production
on Climate Change
- The worldwide production of rice accounts for more greenhouse gas
emissions (GHG) in total than that of any other plant food.
- It was estimated in 2021 to be responsible for 30% of agricultural methane emissions and 11% of agricultural nitrous oxide emissions.
- Methane release is caused by long-term
flooding of rice fields, inhibiting
the soil from absorbing
atmospheric oxygen, a process causing Anaerobic Fermentation of organic matter in
the soil.
- A 2021 study estimated that rice contributed 2 billion tonnes of anthropogenic greenhouse gases in 2010, of the 47 billion total.
- The study added up GHG emissions from the entire lifecycle,
including production, transportation, and consumption, and compared the
global totals of different foods. The total for rice was half the total
for bee
- Water usage →
- Rice requires slightly more water to produce than other grains. Rice production uses almost a third of Earth's fresh water.
- Water outflows from rice fields through transpiration,
evaporation, seepage, and percolation.
- It is estimated that it takes about 2,500 litres of water
need to be supplied to account for all of these outflows and produce 1
kilogram
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