19/05/26 Pollution from moorland burning, Duchy of Cornwall regen tenancies, tulips.

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Researchers at Leeds University say a new study shows deliberate burning of moorland for grouse shooting leads to an additional half a million people, on average, being exposed to unsafe levels of particulate pollution - that's on top of the pollution cause by wildfires. The study was co-authored by the Royal Society for the Protection of Birds, which is calling for a licensing scheme for controlled burning to be brought in for England. In Scotland a plan to bring in licensing was temporarily put on hold by the Scottish Government in the aftermath of extensive wildfires last summer. Moorland managers argue that wildfires cause more pollution than controlled burning - and that controlled burning reduces the risk of wildfires. A fifth of the Duchy of Cornwall's property, owned by the Prince of Wales, could be sold in the next 10 years to help invest £500m into tackling housing and nature crises. The Duchy has a large number of tenant farmers and is introducing a new tenancy agreement, which concentrates on regenerative farming. We find out what's different about this type of tenancy. All week we're celebrating British flowers and today we visit a commercial grower in Norfolk which grows 35 million tulips every year and supplies most of the UK’s leading supermarkets. It's invested five million pounds in new technology so it can stay competitive and compete with imported blooms. Presenter = Anna Hill Producer = Rebecca Rooney