The drought, and the livestock disease bluetongue, are having an effect on milk production, with yield down by 1.5 milllion litres every day, according to the industry body the AHDB. The shortage is pushing up prices for farmers.

We speak to a Dutch vet about how bluetongue developed there three years ago. They had a huge outbreak which led to the loss of tens of thousands of cattle and sheep. Since then a vaccine has been developed.

And we're looking at future crops, bred to be resilent in a changing climate. Today we meet a breeder at the James Hutton Institute in Dundee to sample some new varieties of raspberry.

Presented by Anna Hill and produced by Sally Challoner.