Deep-sea mining may irreparably harm ocean ecosystems before we ... robotic machines to excavate the ocean floor in a way that's similar to strip-mining on land. The materials are pumped up to the ...

Traces of organisms detected in sediments from 7.5 kilometers below the ocean surface reveal how organisms living in the deep sea are engineering their own environments. Analyses of sediment cores ...

On the abyssal plains, at depths between 3,000 and 6,000 meters, polymetallic nodules are scattered across millions of square ...

And, unlike rare-earth mining on land, deep-sea rare-earth muds don’t contain ... Getting the mud to flow is also an issue. “The texture of the mud on the seafloor is much like clay, and ...