(BBC Future, 6 April 2017)

In an old carpet factory on the outskirts of the Belgian city of Kortrijk, an agricultural upheaval is being plotted: growing crops indoors, not out on a farm, stacked layer after layer under candy-coloured lights in an area the size of a studio flat.

It’s called vertical farming, and several companies have sprung up over the last 10 years or so, filling old warehouses and disused factories with structures that grow vegetables and herbs in cramped, artificially lit quarters out of the warm glow of the sun.

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