The war in Ukraine has started to shift the balance of discussions around food security and sustainability. The European farming unions Copa and Cogeca say Europe must equip its agriculture with a ‘food shield’ to face the consequences of both the war in Ukraine, and climate change. And those two pressing issues, have brought the dilemma of how to grow more food, while protecting the environment, into much sharper focus. All week we’re taking stock of the Northern Ireland Protocol and how it’s affecting farming businesses. We’ve heard how trade between Northern Ireland and GB has changed, and how some farming businesses have benefitted from more sales between the province and the Irish Republic. Protocol negotiations are still continuing - so how much progress has been made, and what still needs to be finalised for it to work in the long term? And we hear memories of Dai Jones Llanilar - one of Wales’s best loved rural broadcasters - who died last week. Presented by Anna Hill Produced for BBC Audio in Bristol by Heather Simons