"Yes, organic farming will mean that in one field, a farmer will use less energy, create fewer greenhouse gases and have less nitrogen leaking.
But consider the bigger picture. Organic farming is much, much less efficient than regular old farming. Our farmer needs more fields to grow the same amount of produce. Not just because going organic means less fertilizer and more bugs and pests, but also because the land needs to lie empty or be planted with legumes to rebuild fertility between crop cycles.
A big study in Europe found that to produce the same gallon of milk organically, you need 59% more land. To produce meat, you need 82% more land, and for crops, it is more than 200%. That adds up to a lot of forest and nature being turned into farms for people in Portland, Ore., or Providence, R.I., to feel better about their choices at the supermarket.
If U.S. agricultural production were entirely organic, it would mean we'd need to convert an area bigger than the size of California to farmland. It is the same as eradicating all parklands and wild lands in the lower 48 states."
Monday, 22 August 2016
Bjorn Lomborg: Organic food is great business, but a bad investment