Miners and environmentalists are locked in a battle over a multi-billion dollar treasure trove of metals at the bottom of our deepest oceans.
Now drama on the high seas miles above is heating up the fight.
One mining company claims Greenpeace activists disrupted a research expedition when they boarded its vessel in the remote Pacific.
As a result the campaign group could be thrown out of the UN body overseeing controversial plans to begin deep-sea mining.
