Das argentinische Landwirtschaftsministerium hat 'nen Prototypen entwickeln lassen, der Kuhfürze absaugt und das Methan zur späteren Energiegewinnung speichert.
The project from Argentina's National Institute of Agricultural Technology is only a proof-of-concept at this stage. But it is intriguing. Researchers put plastic backpacks on cows, then inserted tubes into their rumens (their biggest digestive tract). They extracted the methane--about 300 liters a day. That's enough to run a car, or a fridge for 24 hours.
Pablo Sorondo, INTA's press officer, says the project isn't ongoing. The point is to show that it's possible to collect methane from cows and use it for energy. That's unlikely to be as part of the mainstream system. But perhaps it could be viable on remote farms, he says (Argentina has 51.2 million cows).