This greenhouse in the Utah desert seems to be right out of science fiction, where yummy tomatoes grow without soil and produce for nearly an entire year. The greenhouse gets heat and CO2 from a natural-gas power plant to which it is linked by a sort of umbilical cord. Within this bubble of clean, warm air, bumblebees pollinate the vines, and wasps fend off parasites. Whether you hope to build a colony on Mars or just aim to get a good tomato when there's snow on the ground, this is a good place to start.

Guests:
Travis Jones, General Manager of Longvine Growing Co.
Martin Weijters, Head Grower at Longvine Growing Co.