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Key points Inside the collector vehicle, nodules and sediment pass through pumps into a hopper, where differential flow rates tumble the nodules so sediment separates from them at the seabed. Because nodules are heavier, they sink to the bottom of the hopper while 95-98% of sediment…

Key points The video shows the Glomar Explorer now carrying an advanced-design robot miner, ready for testing. TMC says nodule deposits can be found and estimated without extensive prospecting, using sonar and TV imaging. Fifty years after nodule collection technology was first pioneered,…

Key points Less than 4% of the carbon sequestered in the ocean is stored on the seafloor, with most held in the water column, according to Dr. Michael Clarke, TMC’s Environmental Manager. TMC says there is no known pathway for carbon disturbed at 4,000 meters to reach the surface and…