Hey, leave it to those clever Danes (whatever that means) to come up with a whole new way to farm that is superior to conventional farming and produces both food and energy in a sustainable manner. According to a study published in the June issue of AMBIO: A Journal of the Human Environment, this new approach to agriculture was developed beginning in 1995 at an experimental farm in Denmark.
The study (called “The Value of Producing Food, Energy, and Ecosystem Services within an Agro-Ecosystem”) states that 45% of the land on the farm was used to grow food crops, 45% was used to grow pasture fodder, and 10% was used to grow biofuels in the form of fast-growing trees.
This unique mix supposedly allowed the farm to produce more energy in the form of renewable biomass than it used in producing food and fodder. This new mode of organic and sustainable farming is thought to increase "ecosystem services," including water supply, soil formation, and pollination. You can read the article, for a small fee.

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