92% of species in the Clarion-Clipperton mining zone are unnamed

Marine biologists studying the Clarion-Clipperton Zone (CCZ) -- the 4.5-million-km2 region of the Pacific where most deep-sea mining exploration licenses have been granted -- have identified roughly 5,578 species, of which 88-92% have never been formally described or named by science. Rarefaction curves show that sampling is nowhere near saturation: every new survey discovers additional species. This means that mining contractors are required to conduct Environmental Impact Assessments against a biological baseline that literally does not exist. Without knowing what species live in the sediment, what their population sizes are, what their reproductive cycles look like, or whether they exist anywhere else on Earth, there is no scientifically valid way to predict what will be lost, set thresholds for acceptable harm, or design mitigation plans. The reason this persists is structural: deep-sea taxonomy is a tiny, underfunded academic discipline (fewer than 200 active deep-sea taxonomists worldwide), species descriptions take years per organism, and mining timelines move orders of magnitude faster than the science needed to evaluate them. The result is that regulators are being asked to approve the industrial transformation of an ecosystem they cannot even inventory.