There is a lot of talk these days about climate change and what should be done about it. Some people think that dairy cows are a major contributor to global warming, but this is a myth. Cows emit a gas called methane when they chew and digest food, but the amount of methane produced by the British dairy herd is tiny, accounting for less than 1% of the UK's total greenhouse gas emissions - compared with transport, for example, which is responsible for 25%.

There is a lot of talk these days about climate change and what should be done about it. Some people think that dairy cows are a major contributor to global warming, but this is a myth. Cows emit a gas called methane when they chew and digest food, but the amount of methane produced by the British dairy herd is tiny, accounting for less than 1% of the UK's total greenhouse gas emissions - compared with transport, for example, which is responsible for 25%.