This is part 2 of a two-part series examining the U.S.’s efforts to begin deep-sea mining in federal waters. Part 2 examines the regulations that would govern the industry. Part 1 explored the process behind proposed lease sales in U.S. federal waters and reactions to those plans. The deep-sea mining industry could launch in the near future in U.S. federal waters. Yet legal experts and former government officials warn that the regulations that would govern this industry are outdated and lack important oversight provisions. In April 2025, the Trump administration signaled its intention to enter the global race to mine the deep sea when it released an executive order calling for the development of the industry. Following the administration’s direction, in April 2026 the U.S. Department of the Interior (DOI) announced its plans to hold a series of seabed lease sales over the course of this year and into early next. The first one is slated for August in American Samoa, with subsequent lease sales planned for the Commonwealth of the Northern Mariana Islands (CNMI) and Alaska. If these go forward, they could mark the first commercial lease processes for deep-sea mining anywhere in the world. Critics say deep-sea mining could cause large-scale and irreversible damage to the marine environment, and some governments in areas slated for leasing have even taken steps to ban deep-sea mining. In 2024, the governor of American Samoa enacted a moratorium on seabed mining from its territorial waters, which extend 3 nautical miles (5.6 kilometers)…This article was originally published on Mongabay

JEJU ISLAND, South Korea — In April 2025, I zipped myself up into a thick wetsuit and inched down a steep, rocky ledge toward the gray-blue water encircling Beomseom, a small island off the southern coast of Jeju Island in South Korea. Then I leapt into the chilly sea and wriggled into my scuba gear while floating on the surface. In the water with me was Sanghoon Yoon, an adviser for Paran Ocean Citizen Science Center, a South Korean civil society group that advocates for the protection of the ocean. That day, Yoon was my scuba dive buddy. Yoon and I sank beneath the dangling legs of snorkelers into a watery realm of rocks and kelp. Once in deeper water, I encountered gelatinous stalks of soft coral. The polyps appeared purple, pink, red, and even orange, depending on the light. The islet of Beomseom off South Korea’s Jeju Island hosts colorful gardens of soft coral. Image courtesy of Paran. Sanghoon Hoon, an adviser to the Paran Ocean Citizen Science Center, dives among  corals in the waters off Jeju, South Korea. Image courtesy of Paran. The soft corals I saw that day were healthy. But in 2024, soft corals around Beomseom Island and other parts of Jeju experienced what scientists are calling a “slumping” event — and what Yoon describes as “melting” — which saw soft corals losing their shape, drooping, and even dying. The event was widely reported in local media and attributed to marine heat as Jeju waters hovered…This article was originally published on Mongabay