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Re:Is Vertical Farming Really the Future of Agriculture? by hvidgaard on Friday July 06, 2018 @05:20AM (#17470032)
LEDs are simpler to cool, and at this scale it might be possible to use the heat for community heating.
Re:Is Vertical Farming Really the Future of Agriculture? by jsilence on Friday July 06, 2018 @09:42AM (#17471293)
Yes, agreed.

But also: Frontal heat radiation from HPS is working against condensation on plant tissue, helping to achieve good phytosanitary conditions.

Everything has its pros and cons.