A floating network of sensors and samplers will monitor the deep seafloor in real time as mining companies begin extracting metals from it. The TRIDENT project addresses a fundamental gap: there is currently no reliable, legally compliant system to track the environmental damage caused by seabed mining, which is poised to begin in international waters. The project will identify which physical, chemical, and biological parameters matter most—from the sea surface to the seabed—and build statistically robust environmental baselines against which harm can be measured. It will then deploy static and mobile observatory platforms equipped with automatic sensors, linked by high-capacity data pipelines that transmit results to regulators in near real time. If successful, the system could become the standard tool for permitting authorities worldwide, forcing mining operators to prove they are not causing irreversible harm before and during extraction. This matters because deep-sea mining threatens ecosystems that regulate the global carbon cycle and support unknown biodiversity—systems most people never see, but which quietly keep the planet habitable. The project is applied, not fundamental: it builds technology for a regulatory problem that already exists.
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TRIDENT aims to contribute to a sustainable exploitation of seabed mineral resources, by developing a reliable, transparent and cost effective system for prediction and continuous environmental impact monitoring of exploration and exploitation activitiesin the deep sea. This system will develop and integrate technology and novel solutions to operate autonomously in remote areas under extreme conditions, and provide real-time data to permitting and supervising authorities. The effective monitoring and inspection system to be developed will comply with international and national legal frameworks. TRIDENT will identify all relevant physical, chemical, geological and biological parameters to be measured at the sea surface, mid-water and seabed. The project will also identify gaps in existing data sets and develop solutions to address them. These are essential steps to develop statistically robust environmental baselines, establish reliable indicators of good environmental status and define thresholds for significant impact, enabling the standardization of tools and methods. The project consortium will subsequently develop and test an integrated system of static and mobile observatory platforms equipped with the latest automatic sensors and samplers to measure environmental parameters on mining and reference areas at representative spatial and temporal scales. To support quick actions for preventing serious harm to the environment, the system will implement high-capacity data handling pipelines able to collect, transmit, process and display monitoring data in near real time. Finally, we will provide technological and systemic solutions for forecasting potential environmental impacts of using the developed monitoring and mitigation methods.
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