A face mask that neutralises cow burps has won a £50,000 competition judged by HRH the Prince of Wales.
There are an estimated 1.6 billion bovines in the world and and scientists say that each one can produce between 250 to 500 litres of methane per day. Cow's can emit the gas - which is a major contributor to climate change - from each 'end', but the majority is emitted through their belching.
However, Royal College of Art (RCA) students tasked with designing projects that can help protect our planet have come up with a solution. The RAC's Zelp (Zero Emissions Livestock Project) team designed a wearable device for cattle to neutralise methane emissions in real time.
