Mike Zelkind stands at one end of what was once a shipping container and opens the door to the future.

Thousands of young collard greens are growing vigorously under a glow of pink-purple lamps in a scene that seems to have come from a sci-fi movie, or at least a NASA experiment. But Zelkind is at the helm of an earthbound enterprise. He is chief executive of 80 Acres Farms, with a plant factory in an uptown Cincinnati neighborhood where warehouses sit cheek by jowl with detached houses.

Since plants emerged on Earth, they have relied on the light of the sun to feed and grow through the process of photosynthesis.

Read more (The Washington Post)