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Planetary Healing: The Final Lecture with Dr. John H Todd

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Dr. John H. Todd, President of Ocean Arks International, and pioneer of ecological engineering is the brilliant mind behind "Living Machines". Living Machines are ecosystems technologies which treat wastes and purify water with plants, animals and bacteria, rather than chemicals. Such "Machines" have earned three U.S. patents, have won numerous awards, and have been built or are being constructed in many cities, towns, villages and schools in a number of countries. John Todd and his wife Nancy Todd have published several books on ecological design and authored more than 200 technical and popular articles and essays on biology and planetary stewardship.

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