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Why Vertical Farming Won't Save the Planet[0] is a lecture by the preeminent authority in the field, Bruce Bugbee, Utah State University Department of Plants, Soils and Climate, who has studied plant growth in controlled environments for most of his career and has consulted on all NASA missions with these goals. In particular see 13m26s[1] and 37m17s[2].

[0] https://www.youtube.com/watch?v=ISAKc9gpGjw

[1] https://www.youtube.com/watch?v=ISAKc9gpGjw&feature=youtu.be...

[2] https://www.youtube.com/watch?v=ISAKc9gpGjw&feature=youtu.be...

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