Deep-sea mining dilemma: Powering green tech at the cost of ocean life

The article discusses the complex dilemma posed by deep-sea mining, particularly the extraction of polymetallic nodules from the Clarion-Clipperton Zone (CCZ) in the Pacific Ocean. These nodules, rich in critical metals like nickel, copper, and manganese, are essential for manufacturing batteries and renewable energy technologies, with global demand expected to surge by 2040. Proponents argue that harvesting these nodules could stabilize supply chains and reduce reliance on environmentally damaging and ethically problematic land-based mining. The mining process involves a sophisticated system operating 4,000 meters below the ocean surface, using a robotic collector to vacuum nodules from the seafloor, which are then transported to the surface for processing. However, scientists and environmentalists warn that deep-sea mining could irreversibly damage fragile ecosystems that have developed over millions of years. The seabed habitats, including newly discovered species like the gelatinous "gummy squirrel" sea cucumber, depend on the nodules for survival.