From: Dario Moyano Romero
http://www.bbc.co.uk/worldservice/learningenglish/language/wordsinthenews/2014/01/140108_vwitn_bull_power.shtml
One of the biggest problems in the world are the greenhouse gases. The cows are +the animals that most produce global warming. +Her +Their belches -produces +produce a lot of methane and +this is an alarm to our atmosphere.
To put end to this problem, a group of -scientist +scientists have made a system to recycle these gases. The gas is collected from the bull's stomach through a small pipe and compressed in a canister. In this way you can store gas and +use -uses it as fuel. Every day one animal produces enough fuel to drive a car one kilometre.
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