4 links have been added on this idea.
  1. This scuba diving company that developed a subsea greenhouse project to grow vegetables.
    https://www.theguardian.com/sustainable-business/2015/aug/13/food-growing-underwater-sea-pods-nemos-garden-italy

  2. sunnyjim

    As Earth’s resources become more and more scarce, underwater farming could be the answer (and future) for sustaining food security in coming years.