Comments by "robheusd" (@robheusd) on "Two Bit da Vinci" channel.

  1. If you want a really effective way of harvesting drinking water from the oceans, you would want to build a large solar-updraft tower, either as a floating device or on land near coastal area and fill the surface beneath the canapé with sea water. Dimensions are 5km diameter canapé and 1km large solar tower using strong and lightweight materials. It harvests energy from the updraft humid air, and condensers in the tower can harvest drinking water. Plus you can collect any rainfall on the 5km diamater structure and store it in tanks. You could also built them on land near a mountain range that is a barrier for rainfall, and built the tower alongside of the slope of the mountain range, and fill the surface under the canapé with sea water (so it has to be built close to the ocean). Some of the humid air will escape and will increase rainfall in the area that normally is part of a rainshadow.
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  2. That is called OTEC.
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  3. As another fresh water source, rivers flow into oceans, why can't we collect the fresh river water, store it in a large floating bag (fresh water floats on top of ocean salt water), and bring that to a waterpoor country, wouldn''t that be cost effective?
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