Archive | Deep Sea Mining

https://www.forbes.com/

It certainly looks like it. From almost any perspective, seabed mining of metals is better for the environment, social justice issues and economics.

A large continuous supply of special economic metals is essential for any high tech future. Building electric vehicles and wind turbines take a lot of resources, more than we can provide now, particularly special metals like Co, Li, Te and Nd, as well as just base metals like Fe, Cu, Pb and Zn, and other rare earth elements. Even other materials like graphite.

But their supply is generally an environmental and social nightmare. The waste from Li, graphite and high-purity-Si processing has destroyed whole villages and ecosystems in China, Indonesia and Bolivia, among others. Continue Reading →

https://timesofsandiego.com/

Bob Kurz serves on the state board of Coastal Conservation Association California and is also a trustee for the International Game Fish Association.

Growing demand for gold, platinum, phosphorous and other valuable minerals found off our coast may someday lead mining companies to bring destructive extractive machinery to California’s nearshore seafloor.

The result could be widespread damage to the kelp forests, rocky reefs, coral gardens and other areas that nurture fish and wildlife and sustain the recreational and commercial fisheries vital to our coastal economy.

The California State Lands Commission should proactively address this threat by implementing a precautionary ban on seabed mining for hard minerals in state waters. Continue Reading →

https://www.scientificamerican.com/

As the industry inches closer to reality, scientists probe potential environmental harms

Slashing humanity’s reliance on fossil fuels will require billions of kilograms of metal: a single wind turbine can contain more than a metric ton of copper, and electric car batteries demand heaps of cobalt, nickel and manganese.

Most of these metals now come from terrestrial mines—often at the cost of deforestation, water pollution and human rights abuses. But a vast trove of metals on the deep-sea floor could soon provide an alternative source.

Though companies have been eyeing this possibility for decades, engineering challenges and unfavorable economics have kept work in the exploration phase. Continue Reading →

https://cleantechnica.com/

DeepGreen is a deep-sea mining company with a vision of a zero-carbon, circular economy. Its goal is to source metals with the least environmental and societal impact. I noticed the company when its social media marketer added me to a Twitter list.

DeepGreen Metals has an interesting name and it caught my attention more when I checked out its profile and was graciously offered the opportunity to interview the CEO, Gerard Barron.

I find the world of minerals, metals, and gemstones a fascinating one, and DeepGreen’s story using a technique with minerals to extract base metals for batteries really piqued my curiosity. Continue Reading →

https://www.cnbc.com/

Across the otherworldly plains of the Clarion-Clipperton Zone, some 15,000 ft below the surface of the Pacific Ocean, are clustered manganese nodules the size of potatoes. The rare earth metal deposits have grown undisturbed at a rate of about a third of an inch every several million years. Now they are targets for the nascent seabed mining industry.

But plucking them off this dark desert is no easy task. First they need to be found. That’s where underwater drones come in. Hovering just feet above the seafloor, the machines can record unprecedented details of a surface less mapped than Mars.

“If you want high-resolution information, you have to put the sensor close to what you’re looking at. An AUV [automated underwater vehicle] is the best and most accurate way to do that,” said Richard Mills, vice president of marine robotics sales at Kongsberg Maritime. His company’s creations can relay images with a resolution of 2x2cm, much better than what’s possible with a surface-level ship’s sonar. Continue Reading →