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Plans to flood 1500 acres of farmland along the Severn Estuary to create saltmarsh won't be effective in saving fish affected by a nuclear power station - that's according to ecosystems expert Dr Mark Everard of the University of the West of England. EDF is building the station at Hinkley Point in Somerset and had agreed to install and maintain an acoustic fish deterrent to prevent fish being sucked into the site's cooling systems. But they now say it's dangerous to build and the technology is untested, and want to flood farmland instead to create saltmarsh habitats. Dr Everard says most fish - including migrating salmon - won't benefit from this, and the deterrent system is already used effectively worldwide.
We visit a farm testing a robot that can measure the organic matter in soil. The farm is part of a trial by Innovative Farmers and Plymouth University, and it could help farmers improve their soil.
All this week we're looking at winter vegetables - things like Brussels sprouts, kale and those favourite root veg like parsnips and carrots. We eat more than 10 billion carrots each year according to the British Carrot Growers Association. They're mainly grown in the east of the UK from Scotland down to Norfolk and it鈥檚 a highly specialised operation.
Presented by Caz Graham and produced by Sally Challoner.