The document discusses sustainable supply chains and sustainability standards. It notes that retailers like Tesco and Sainsbury's have their own sustainability standards for suppliers. Meeting these standards requires farmers to provide data through paperwork, audits and sharing information. There are questions around who owns this farm data and who has access. The document also discusses new roles in sustainable supply chains, including farmers needing to manage sustainability data and communicate it, retailers defining sustainability parameters, and consumers becoming more knowledgeable. An important aspect is developing transparent supply chains where consumers can select products that meet their sustainability criteria and farmers are rewarded for sustainable efforts.