Masks have been created to capture toxic cow burps.
A mask is capable of capturing cow burps
Design group Zelp claim that the muzzles will help to block more than 3 gigatonnes of methane belched into the atmosphere each by the 1.5 billion cattle and have intrigued the heir to the British throne.
The masks pass the gases released by cows through a catalyst where they are released into the air as carbon dioxide and water vapour.
They "comfortably" fit around the cow's head without impacting the movements or habits of the animals.
Zelp - Zero Emissions Livestock Project - have been rewarded with £50,000 by Prince Charles, who teamed up with the Apple design guru Sir Jony Ive to find students and designs that can help to save the environment.
Speaking to the winners, Charles said: "I can only hope as a result of this and drawing a built more attention to what you are doing that we will have a better chance of winning this battle in shorter time. I can only wish you every possible success. Many congratulations, marvellous."
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