能源转型要以毁灭深海为代价？深海采矿的生态账与经济账如何算？

Core Viewpoint - The demand for key mineral metals is rapidly increasing due to energy transition, while deep-sea mining is gaining attention for its potential negative impacts on marine ecology, raising widespread concerns about environmental sustainability and global ocean governance [1][2]. Group 1: Environmental Impact of Deep-Sea Mining - Research indicates that deep-sea mining activities can lead to significant destruction of seabed habitats, resulting in a 37% reduction in the number of small marine animals and a 32% decrease in species richness in affected areas [2]. - The Clarion-Clipperton Zone, a key area for deep-sea mining, is home to over 30 species of whales and hundreds of unique deep-sea organisms, with significant reserves of nickel, cobalt, copper, and manganese [2]. - Approximately 30% of small marine animals depend on polymetallic nodules for survival, and mining operations are expected to cause biodiversity loss [2]. Group 2: Regulatory and Governance Challenges - The International Seabed Authority (ISA) has issued 31 exploration contracts to 21 entities from 20 countries, but no commercial mining plans have been approved due to pending international regulations [5]. - The U.S. is pushing for deep-sea mining under a unilateral framework, which raises concerns about conflicts with international governance and the potential for destabilizing established cooperative efforts [4][6]. - The ISA is working on comprehensive mining regulations to ensure future commercial activities are conducted responsibly while protecting marine ecosystems [7]. Group 3: Economic Viability and Technical Challenges - The commercial feasibility of deep-sea mining remains questionable, with significant capital investment and operational costs, as well as technical uncertainties that are more complex than land-based mining [8]. - Experts suggest that the destructive nature of current mining technologies makes large-scale commercial exploration inadvisable, as even small-scale tests have shown significant ecological impacts [7].