Does It Make Sense to Grow Food Indoors?

There's an interesting discussion underway at TreeHugger, spawned by this user-submitted question:So I feel like the idea of growing food in high rise buildings has come up from time to time in the last few years, most recently here. They say they have the technology to make it work, but I'm assuming that that technology involves heating lamps to provide "sunlight" inside- heating lamps that need electricity: lots of electricity. Isn't this just a big step, if not backwards, at the best sideways?Chime in with your own opinion over at the TreeHugger forums.