Q: I'm curious why I've never seen four 20-foot intermodal containers in a single well car, stacked two on top and two on the bottom. I've only ever seen two 20-foot containers in the well and a ...

Add Yahoo as a preferred source to see more of our stories on Google. Hank Kim shows how herbs are grown vertically at the Square Roots hydroponic farm, which utilizes 20 shipping containers to create ...