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of the animals' guts — cutting down on natural methane production. it's just one part of efforts to reduce the levels of greenhouse gases created by the farming industry. tom heap from the bbc�*s countryfile programme has the details. it's a fact of life. cows release a fair bit of gas. the government estimates around half the uk's methane emissions comes from cows, and globally that livestock produces around 14% of greenhouse gas emissions. it's one of the reasons there have been calls from climate campaigners to reduce livestock farming. scientists from the scottish rural college have now succeeded in extracting a chemical called haemanthamine from daffodils, and laboratory tests using an artificial cow stomach, have shown it could reduce methane by 30%. the scientific world is very focused on reducing emissions. so this is really exciting. that there is a compound that can potentially reduce methane emissions. it looks like a big step. now feeds with the chemical added are being tested on a number of farms across the country to see if it works in animals.