The work includes more than 35 novel and critically important maps that show how nature’s value to people varies widely from place to place. They also illustrate nature’s potential. These maps show that we can accurately quantify the value of marine resources.

Further, by enumerating such values, we can encourage their protection or enhancement for the benefit of people all around the world. In summary, it clearly articulates not just that we need nature, but how much we need it, and where.