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."
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After a mild start temperatures should pick up, with the south of England seeing highs of 26C.
In Edinburgh tonight you can hear it and feel it. The buzz, the banter of the day and the thrilling sense something big is coming tomorrow.
There is nervousness, anxiety and on the streets of Edinburgh fuelled by an atmosphere unlike anything seen before in recent UK politics.