After being used by man for hundreds of thousands of years, many of the natural resources found on land are facing exhaustion. In the future, people will increasingly look to the sea for food, mineral and power sources, and even living space.
經過數十萬年來人類無限制地使用，陸地資源已面臨枯竭，未來人們將轉向海洋，尋獲各種食物、礦產、能源，甚至生存的空間。