Shipping containers have been redesigned to become housing, offices and even health clinics, but now a startup in Tucson is transforming them into sun-free, soil-free greenhouses. Leaf lettuce from their test system shows they’ve got dark-green thumbs.
Verdant Earth Technologies has a plan to retrofit standard 20-foot shipping containers into mini farms. Each of their controlled environment agriculture systems — or CEAs — is fitted with five shelves, where the plants live. Instead of sitting in soil however, the plants sit in a nutrient-rich solution that also works to irrigate them.