Global meat consumption has increased by more than 50% in the past 20 years.
. Add up the whole of India, South Africa, France, and Spain and you have the amount of land devoted to crops that are then fed to livestock.
Meat and dairy production is already an unpleasant business. For instance, most chickens are grown in high-density feeding operations, and pork, beef, and especially dairy farming is going the same way. Current technologies are cruel, polluting, and harmful to biodiversity and the climate – don’t be misled by cartoons of happy cows with daisies protruding from their lips., often with no hope of long-term success. We need to tackle the cause of biodiversity change.
Other emerging technologies include microbial protein production, where bacteria use energy derived from solar panels to convert carbon dioxide and nitrogen, and other nutrients into carbohydrates and proteins. This could generate as much protein as soybeans butIt is even possible to generateand carbohydrates using desalination or through extracting CO₂ from the atmosphere, all without ever passing through a living plant or animal.
Gone too will be industrial livestock systems that produce huge volumes of manure, bones, blood, guts, antibiotics, and growth hormones. Thereafter, any remaining livestock farming could be carried out in a compassionate manner.
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