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Video of the inventor, Carl Resler.

"When a plant or animal dies and decomposes, the remains become nutrients for new plant growth. When a plant or animal dies and decomposes in the deep ocean, the remains sink into the deep water, beneath the sunlit layer at the surface where plants can grow. It follows, then, that nutrients, most notably nitrate and phosphate, have been accumulating in the depths of the ocean for hundreds of millions of years. The oceans cover most of the earth, so there is a vast amount of this nutrient material that is just out of reach of microscopic plants called phytoplankton that live in the top sunlit layer .
For many decades there has been an interest among oceanographers to tap into this huge reservoir of nutrients and to bring the fertile water closer to the sunlit surface in order to effect biological growth, which would hopefully simulate what happens naturally in the many highly productive upwelling regions that exist along the coast.
This immense resource of nutrients is now accessible with inexpensive pipes. No fuel is required to lift the nutrient rich water, because the ocean provides the required energy. It is also not necessary to employ moving parts such as valves that flap back and forth and might wear out or fail. All that is needed is plastic and metallic pipes. Given that this valuable resource of nutrients is so vast, and that it is accessible simply with pipes, without fuel, and without moving parts, I hope that you are convinced that artificial upwelling technology has the potential to restore and to enhance the populations of many marine species."

Carl Resler is a physicist, neurophysiologist, inventor, computer programmer, is retired from the University of Texas at Austin, and currently living in Jupiter, Florida