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Sustainable Marine Development 

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Congratulations to Peter Barham MBE, the Chair of the SUDG, for walking away with the first Bob Earll Award at the 2024 Coastal Futures Conference. Peter was recognised for his prolific contributions to ocean and coastal management during his career in environmental sustainability which spans over four decades. He is an outcome-focussed innovator, promoting different ways of working that help to build trust and consensus around often challenging issues by focussing on the importance of win-win outcomes.

Peter is a true champion of bringing people together to achieve a common goal, he has a unique ability to lift others up, by both encouraging and supporting colleagues, and making sure that everyone feels empowered to contribute to discussions and share their thoughts and opinions.

Peter has notably facilitated industry contributions to the development of the Marine and Coastal Access Act, the establishment of the Marine Management Organisation, the development of the Marine Works Regulations and the UK Marine Policy Statement, and the wider process of establishing national marine plans. In recent years he joined the steering panel for the Benyon Review into Highly Protected Marine Areas, and has spearheaded and galvanised industry support for the development of marine net gain policy (MNG), chairing the OWEC funded task and finish group to identify strategic targets for MNG which have directly informed government MNG policy development.    

Peter has helped to shift the mindset of the marine development sector, from a ‘them and us’ adversarial approach to embracing the fact that in many cases marine industry can play a central role in helping to enable sustainable solutions that deliver not only for the economy but also for the wider environment.




This report summarises work undertaken by a Task and Finish Group (T&F Group) between October 2022 to October 2023, funded by the Offshore Wind Evidence and Change programme, to explore and make recommendations on options for the delivery of Strategic Marine Net Gain (SMNG). The report builds on earlier work undertaken by the T&F Group which identified strategic targets for MNG (The Crown Estate, 2021).


This second report provides recommendations on delivery of those targets to best achieve SMNG.




Updated: Sep 16, 2024

Natural England is leading the multi-year POSEIDON project (Planning Offshore Wind Strategic Environmental Impact Decisions) which seeks to support the expansion of sustainable offshore wind alongside thriving marine nature. This will be achieved through updated spatial models for the species and habitats most vulnerable to offshore wind impact and an integrated risk and opportunity map.


The project is part of the Offshore Wind Evidence and Change Programme (OWEC) led by The Crown Estate, in partnership with the Department for Energy Security and Net Zero and the Department for Environment, Food & Rural Affairs. POSEIDON brings together industry, academia, and government, including the Offshore Wind Industry Council (OWIC).


POSEIDON started by collating existing data about seabirds, marine mammals, and the seabed to identify gaps in the knowledge base. These are now being filled through a two-year survey campaign. Digital Aerial Surveys of seabirds and marine mammals are taking place in the North Sea and the Irish Sea with benthic data collection in the North Sea, the Irish Sea, the Celtic Sea and the English Channel. The new data collected through POSEIDON will be made publicly available via the Marine Data Exchange with the launch of the final mapping and modelling tools planned in September 2025.

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