Evaluating the environmental and economic claims surrounding deep sea mining, specifically focusing on polymetallic nodules. While proponents argue that oceanic extraction offers a low-carbon alternative to land-based mining, the report identifies significant inconsistencies and flaws in industry-funded research. Key findings highlight that metallurgical processing remains a massive emissions hotspot regardless of the ore's origin, and current studies often ignore the permanent damage to massive seafloor carbon stocks. Furthermore, independent analysis suggests that deep sea operations could actually result in a higher climate impact than terrestrial mining depending on the energy grid used. Consequently, the document urges financial institutions to support a moratorium on these activities due to substantial regulatory and ecological risks. Inste ...