Dairy farmers are taking a calculated business risk not to invest to stop pollution because the chances of being fined are so tiny. That's the findings of an Environment Agency report looking into river pollution, revealed by a freedom of information request by the Guardian. Two thirds of farms in Devon were found to be causing pollution when inspected by the Environment Agency; the inspections were carried out on 187 farms between 2016 and 2020. We ask the National Farmers' Union what's going on.

A full in tray greets the new Secretary of State for the Environment as she settles into the job; Therese Coffey is back at Defra where she served as a junior minister for three years.

We're looking at the growing demand for nuts and seeds this week and chia is one of the newest crops being grown here in the UK. It can be eaten as a seed or the oil can be extracted and used in vegan supplements and make up.

Presented by Charlotte Smith and produced by Beatrice Fenton.