As Pantone’s colour of the year – Living Coral – reminds us, the world’s waters are in dire straights.  Despite oceans covering 70% of the earth, humans have really made their mark on these vital ecosystems, with half of them being over-fished, low-oxygen ‘dead zones’ quadrupling since 1950, and a reported trend leaning towards fish-less oceans in 2048.  And that’s all without mentioning the greatly publicised impact that plastic waste is having on marine life.