Soils
December 24, 2020
When I was in Saudi Arabia and other countries on the Arabian Peninsula I saw a lot of sand. Everywhere I looked was sand. Well...sand or concrete. Very little concrete. It was the most desolate region I've ever seen. I couldn't believe anything could grow there. Yet there were plants growing. In fact the Saudis had an ingenious cooling system for the walkways. Vining plants were growing directly in the sand with a slow drip system at each plant. The vines covered a trellis system, hanging down the sides, to create a tunnel. As the air flowed through the vines it cooled off the tunnel to a...
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