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​Indoor Farming: A Hidden Pollution Problem
Around 40% of the world's Indoor farms use a synthetic “soil” called rockwool grow-media to grow crops in hydroponic systems. This grow-media is becoming a little-known pollution problem.
(1) Mine Rock For Rockwool Manufacturing
(2) Manufacture Rockwool with HIGH-HEAT and HIGH-ENERGY
(3) Recycle or Landfill Rockwool After-Use
(1&2) Rockwool is created by mining rock and heating rock up to 1500 °C in a rotary kiln to create a "cotton-candy"-like material called rockwool fibers. These fibers are then manufactured into popular products such as rockwool insulation and rockwool grow-media.
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(3) Rockwool must be shipped to complex and sophisticated recycling centers. The energy-intensive recycling process is not accessible to many users, resulting in the landfilling of Rockwool in many areas of the world.
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