The seventh-largest economy you've never heard of

As an entity that covers over 70% of the earth's surface, it's surprising to hear that more of the moon's surface has been mapped than the bottom of the ocean. But awareness is growing of the crucial role the ocean plays in our lives. Up to 80% of the oxygen we breathe is produced by this vast body of water and more than 90% of the excess heat caused by greenhouse gas emissions has been absorbed by it. Convinced that the huge economic benefits of the world's oceans are completely undervalued and investors don't understand nearly enough about the threats to this vast natural resource, ...