Check out
this story about a commercial urban farm in New York City. Think about this in this week's theme of human population growth and resource use, the idea of urban farming is an intriguing one. I am just guessing (since I don't think we have any actual data to inform us), but I suspect that growing vegetables on a rooftop in NYC is more energy intensive then growing them on a traditional farm upstate. But what if the alternative is clearing a patch of second growth deciduous forest....or a patch of rainforest to provide food for our growing more resource intensive populations?
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