but the recent combination of advances in underwater-mining technologies and steep increases in the value of gold and other precious metals has triggered an aggressive push to mine the deep ocean ...

The BBC's David Shukman explains how deep sea mining works He was speaking during ... vents at the rear of the machine and released in a narrow stream, to try to avoid the plume spreading too ...

A growing controversy is swirling around deep-sea mining, which aims to extract valuable minerals from the ocean floor. In July, the UN-affiliated International Seabed Authority (ISA) will start ...