How One Company Plans to Mine the Bottom of the Sea

A company in Canada has a new plan. They want to take metals from the sea floor. The metals are in the Pacific Ocean. The rocks are called polymetallic nodules. These rocks have nickel inside. They also have copper and cobalt. They have manganese too. These metals are very important. Electric cars need these metals. Car batteries need these metals too. The company will use special robots. The robots work under water. They will go very deep. They will work at 4,000 meters. That is very far down.