The premise on which it’s based is simple, too: the oceans are the planet’s life support system because they regulate its climate and provide half of the oxygen we breathe. Its fish provide a staple diet for 50 per cent of the people on the planet. Its water, thanks to trans-evaporation, is what we drink. However, almost 40 per cent of the world’s oceans is severely affected by human activities – resulting in pollution, exhausted fisheries,