The world's first deep sea mining robot sits idle on a British factory floor, waiting to claw up high grade copper and gold from the seabed off Papua New Guinea (PNG) - when a wrangle over terms is solved. Beyond PNG, in international waters, regulation and royalty terms for mining the planet's subsea wealth have also yet to be finalised. The world waits for the judgement of a United Nations agency based in Jamaica. "If we can take care of the environment we have a brand new day ahead of us.