Field Notes

Dispatches from the deep.

March 5, 2026

AUVTechnology

The Future Dominant Role of AUVs in Ocean Operations

Autonomous Underwater Vehicles are evolving from supplementary survey platforms into systems capable of reshaping ocean operations — reducing vessel dependency, lowering marginal cost, and enabling persistent subsea monitoring at scale.

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January 1, 2026

Critical MineralsEnergy

Deep-Sea Minerals Could Help Power the Global Energy Transition

Renewable energy systems depend on a concentrated set of critical minerals whose demand is rapidly outpacing supply. Deep-sea polymetallic nodules — rich in cobalt, copper, manganese, and nickel — could provide a third path between damaging land-based expansion and a stalled energy transition.

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November 10, 2025

EnvironmentMining

What Deep-Sea Mining Means for Terrestrial & Aquatic Environments

Terrestrial mining produces 6–8% of global greenhouse gas emissions, devastates ecosystems, and imposes severe human costs. Deep-sea mining offers a potentially lower-impact alternative — but requires careful research, conservative engineering, and rigorous oversight.

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September 1, 2025

MiningTechnology

The Final Frontier Below: What is Deep Sea Mining?

Deep-sea mining encompasses three distinct resource types — cobalt crusts, seafloor massive sulfides, and polymetallic nodules — each with different technical requirements and environmental profiles. Nodules in the Clarion-Clipperton Zone represent the most accessible target, but significant unknowns remain.

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August 4, 2025

Critical MineralsMining

Polymetallic Nodules Explained

Formed over millions of years on the deep ocean floor, polymetallic nodules contain concentrated deposits of nickel, cobalt, manganese, and copper — the exact minerals constraining the global energy transition. Here is what they are, where they come from, and why they matter.

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