2025, North West Wildlife Trust, Marine Internships, Supporting the development of Marine Net Gain policy series https://portal.medin.org.uk/portal/start.php?tpc=015_c31a6f22-a4da-4e3a-a48b-ca688a8696b4 A synthesis of UK marine policy and Marine Net Gain (MNG) using systems thinking mapping to identify the gaps, overlaps, and opportunities between MNG and UK environmental, coastal, and marine policy. This report was produced as a collaboration between the Offshore Wind Evidence and Change Programme’s MNG Task & Finish Group and The Crown Estate’s Marine Futures Internship. The UK marine policy landscape is an evolving system, with many links but also gaps between different policies. With the growth of the offshore wind industry there are additional policy issues to contend with, one of which is the potential impacts of offshore development on marine biodiversity. MNG is an evolving policy which aims to ensure that offshore development or activity leaves the marine environment in a better state than it was in before. Whilst emerging MNG policy offers significant potential to drive restoration, clear gaps remain in governance, spatial coverage, and alignment with other related policies. Addressing these gaps through clearer links to the mitigation hierarchy, research and evidence to link central and local strategies, and a feasible implementation framework will be critical to move forwards. Collaboration across the devolved nations and learnings from pilot schemes could help create a more efficient and effective approach to marine restoration at a regional and national level. The Marine Futures Internship is a collaborative project between Natural England, Ørsted, The Crown Estate and the North West Wildlife Trusts, which is funded by The Crown Estate and managed by Cumbria Wildlife Trust. 20260209T15:21:19