Deep-Sea Mining Leases Considered Near American Samoa

Deep-Sea Mining Leases Considered for American Samoa

The U.S. Department of the Interior has initiated the process of potentially selling deep-sea mining leases in waters offshore American Samoa. This action follows a formal request from Impossible Metals, a deep-sea mining startup.

The agency will evaluate the potential lease sale and solicit public feedback before making a final decision. This process includes a mandatory publication in the federal register.

Interior Secretary Emphasizes Critical Minerals and National Security

Critical minerals are fundamental to strengthening our nation’s resilience and safeguarding our national interests. By providing opportunities to responsibly access deep-sea mineral resources, we are supporting both American economic growth and national security.

This statement from Interior Secretary Doug Burgum suggests the administration is leaning towards approving the leases.

Impossible Metals' Technology and the Demand for Minerals

Impossible Metals utilizes an underwater autonomous vehicle (UAV) with robotic claws to collect polymetallic nodules from the ocean floor. These nodules are rich in minerals like manganese, iron, cobalt, nickel, and copper. The company claims its method is less environmentally disruptive than traditional vacuum-based mining.

Global demand for these critical minerals has surged due to increasing electrification and concerns over China's dominance of the mineral market.

Environmental Concerns and Potential Risks

Polymetallic nodules form over millions of years and contain high concentrations of minerals. However, ecologists and oceanographers warn that deep-sea mining could severely disrupt fragile ecosystems. Recovery from such operations could take decades.

• Mining robots could directly harm sponges and other deep-sea creatures.
• Sediment plumes from mining operations could pollute the water.
• The nodules themselves may play a role in oxygen production and could be crucial for research related to extraterrestrial life.

A recent study indicated that microbial communities could take up to 50 years to recover from mining activities. The long-term consequences of deep-sea mining warrant careful consideration.

Impossible Metals submitted its formal request for the leases in April. The public comment period will allow stakeholders to voice their opinions and concerns regarding the potential environmental impact of this deep-sea mining venture.