Triton’s Sawfish, the world’s only remote controlled deep-water logging submarine, is designed to get at the underwater forests created by modern hydroelectric damming. Huge areas of forest are often flooded and the submerged wood is completely preserved and desirable. With an estimated 100 billion board feet worldwide, the Sawfish is able to tap this $50 billion market. Via our friends at [Treehugger.](http://www.treehugger.com)