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By Doloresz Katanich with AFP

Producing locally-grown greens all year round can be done without soil or sunshine, as vertical farms across Europe are showing.

One of the largest shows why you should never judge a book by its cover. What looks like an ordinary warehouse on an industrial estate , in fact, the home of ‘Nordic Harvest.’ In Taastrup, on the outskirts of Copenhagen, racks of lettuce, kale and herbs grow under the purple glow of thousands of LED lights.

Technology is at the heart of their operations and they lean heavily on hydroponics – the science of growing plants without soil. Instead they feed on mineral nutrient salts dissolved in water.


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