Key points Company data cite over 300 scientific expeditions and roughly 9,000 days of research collected in the Clarion-Clipperton Zone over more than 40 years, ahead of any commercial mining. If every CCZ mining lease were worked, that would cover 0.4% of the abyssal plain globally,…
Key points TMC’s collector weighs about 90 tons in air but only 15 tons on the seafloor with buoyancy applied, and post-pass surveys showed disturbance of just a few centimeters, versus roughly 80 cm of sediment churning from the older Archimedes screw design. The Coanda nozzle intake…
Key points Hydrophone monitoring found noise above 120 decibels, the U.S. National Marine Fishery Service threshold for a cetacean behavioral response, extends about 3.6 km around the production vessel. The main noise source is the vessel’s dynamic positioning thrusters, not seismic…
Key points TMC found that sediment plumes form turbidity currents that follow the seabed’s contours and flow downslope into depressions, letting engineers predict where sediment will settle with high accuracy. The original straight-line mine plan required 80 to 100 km runs with the…