Organic food has a bigger climate impact in comparison to conventionally farmed food because a greater area of land is required for organic food. This is the finding of a new international study involving Chalmers University of Technology, Sweden, published in the journal Nature.
The researchers developed many kinds of methods for assessing the climate impact from land-use to compare organic food and conventional food production and found that organic food can result in much greater carbon dioxide emissions in comparison to traditionally farmed food.
The study shows that organic peas farmed in Sweden, have around a 50% bigger climate impact than conventionally farmed peas. According to Stefan Wirsenius, an associate professor from Chalmers the organic Swedish winter wheat, the difference is closer to 70%. The main cause of impact is in such farming fertilizer is not used so that to produce the same amount of organic food, it needs a much bigger area of land.
So, the conclusion of the new study is the more usage of the area of land causes a much larger climate impact.
According to Stefan Wirsenius, the greater land-use organic farming causes deforestation, and deforestation causes indirectly to higher carbon dioxide emissions.
Not only the organically farmed food but the organically produced meat and dairy products are also impact climate badly than conventionally produced foods.
It is because organic meat and milk production use organic feed-stocks, for these also require more land to produce in comparison to conventional production.