Nightline had a mind-blowing segment on Bell Book & Candle, a soon-to-open New York City restaurant that is growing its own produce hydroponically on the roof. This is not some token "I have a few raised beds" type thing, but a super-ambitious full-scale farm. Chef-owner John Mooney hopes to grow nearly all of what he uses in the restaurant in these water-only, no soil, freestanding plastic towers. He's growing lettuces, fresh chickpeas, eggplant, squash, strawberries, and more for ten months out of the year; he'll get the other two months of the year's produce from farmers' markets. Check this video out: so many implications for not just restaurants, but apartment buildings and offices.