A British company has developed the first tractor in the world to be completely powered by cow dung.
The liquid methane gas-powered T7 vehicle is said to be first of its kind and could mark a turning point in efficient energy supply on UK farms.
It works by collecting waste by-products from a herd as small as 100 cows into a biomethane storage unit based on the farm.
A cryogenic tank fitted on the tractor keeps the methane in liquid form at -162 degrees giving the vehicle as much power as a diesel but with significant emission savings.
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