The National Farmers' Union has said that it believes that ordinary farmed beef is sustainable - something that some scientists disagree with.
A spokesperson added: "Beef farmers are proud of their farming which delivers great tasting, sustainable food for British consumers while also offering significant benefits for the environment, landscape and the rural economy."
More top news
The Duke of Cambridge became a fearsome samurai warlord - at least temporarily - when he visited the set of a long-running Japanese drama.
A grandmother says she was outraged after her grandson was segregated from his classmates by a cardboard screen - for being one minute late.
Leaked documents have revealed the first known picture of Mohammed Emwazi - named as IS militant Jihadi John - as a student in London.