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times larger and travel for miles down into the deep sea. each $5 million robotic vehicle uses cameras and artificial intelligence to find rocks that contain metals, but not animal life. >> so, the clause themselves driven by the ai and saying, take it, leave it, take it, leave it. to be able to ensure that the ecosystem on the seafloor remains intact. >> reporter: typical deep-sea mining uses a robot to dredge the seafloor and could soon be approved and what is known as the clarion-clipperton zone. 2 million square miles of the pacific ocean rich with mineral deposits. scientists are worried that mining here will destroy the habitat of thousands of prayer deep-sea species and spread plumes of toxic sediment. >> you can't try to save the planet by breaking the planet in the process. those several years of mining are going to cause centuries of damage. >> reporter: renee grogan says deep-sea mining can be done