Owing to the increasing population, the disparity of natural resources distribution and the variation of climate around the world, there are energy-water-food nexus problems in some countries in the world. It is the objective of the current work to point to the wealth of the oceans as a resource to find all three components. Aquaculture for deep water should also be investigated, and coastal aquaculture expanded. Wind and water technologies for generating electricity or other forms of transportable/storable forms of energy should be researched and developed to a much greater extent. The cost of desalination for potable water should be driven down so that many more countries could afford it. Other pressing reasons for looking to use the oceans more are discussed in this review.