Rocks the size of apples lying four kilometres down in the central Pacific hold more manganese and cobalt than every known land deposit put together — and mining firms are now competing to lift them out of an ecosystem so poorly studied that more than 90 per cent of its species have never been described

The deep ocean floor holds the metals the world needs for its energy transition, but mining it could destroy an ecosystem we're only beginning to understand—and we may not get a second chance to study it. The post Rocks the size of apples lying four kilometres down in the central Pacific hold more manganese and cobalt than every known land deposit put together — and mining firms are now competing…