Blue Marine Foundation, Project Seagrass and Surfers Against Sewage (supported by Flotilla Foundation) have come together on this critically important topic. Seagrasses across the British Isles are in a perilous state due to poor water quality, primarily excess nutrients from sewage and livestock, reducing their ability to sequester carbon and mitigate climate change. Seagrass beds in good condition are extraordinary nursery habitats for juvenile fish. Poor water quality (primarily from livestock waste, sewage discharges and excess fertiliser use) damages these services that seagrass provides. This is therefore an urgent fisheries and food security issue that our government should not ignore. This report sets out scientific evidence for how seagrass is being affected by water quality issues. As you will see, nutrient enrichment threatens to release carbon stored beneath seagrass. We are calling on regulators to rapidly develop better regulation and enforce current policies to tackle water quality issues at source, helping to allow seagrass to fulfil its role as a powerful solution to climate change.