Based on extensive impact assessments comparing land-based ores and ocean nodules, nodule collection and processing can achieve a 70% reduction in CO₂ emissions and 90% reduction in SOx and NOx emissions (TMC).
70%
reduction in CO₂ emissions
90%
reduction in SOx and NOx emissions
Seafloor-to-shore supply chain
Together with our strategic partner, The Metals Company (TMC), we are developing the framework for an entire seafloor-to-shore supply chain, while tackling the complex problem of environmental protection and technology readiness. Nodules are transported 5 kilometres to the surface via a vertical riser, where they are stored on board our production vessel, Hidden Gem, before transfer to bulk carriers.
~100%
usable minerals are contained in Polymetallic nodules
100%
elimination of solid waste
Minimising seabed and midwater disturbance during nodule collection is essential. In the design phase, we prioritised reducing sediment displacement and limiting the spread of suspended sediment plumes caused by vehicle movement, nodule extraction and the return of water from surface operations.
Comprehensive research for environmental responsibility
Our partner, TMC, is conducting the world’s largest integrated seabed-to-surface ocean research programme to better understand deep-sea habitats and ensure that our methods are scientifically informed.
Scientists from around the world have joined the environmental programme, and the findings will form the basis of the environmental and social impact assessment (ESIA) for polymetallic nodule collection. We will use the insights gained from this extensive research to optimise our nodule collection system to prioritise environmental and social responsibility.
