Planet E: Our Environment (2026) - FAQ
Frequently asked questions about this film.
What is vertical farming?
Vertical farming is a method of growing vegetables and lettuce heads in stacked layers, using artificial lighting and a liquid nutrient solution without soil.
Who invented the vertical farming method used in Japan?
Professor Toyoki Koai invented the vertical farming method in the 1970s.
How much more can vertical agriculture produce compared to conventional farming?
Vertical agriculture can produce 100 times the annual harvest on a single plot of land compared to conventional farming.