Famous for its sushi and sashimi, it's not surprising that Japan is one of the biggest fish consuming countries in the world. However, Japan isn't the only country with an appetite for salmon and tuna. The global demand for fish has been steadily increasing and has reached a point that has caused many experts to say that the world's fish supply is now at risk. One potential solution to this issue has been the commercial rearing of fish at facilities that are usually located on the coast or near bays or harbors. Today, we will look at 2 companies that are helping to take fish farms inland, one with new water technology that allows them to use standard tap water and the other by taking advantage of the railroads.