Spirulina has resource advantages of land, water and energy? How does growing it save fertile land and soil?
Spirulina is more than 60% protein, yielding 20 times more protein per acre than soybeans and over 200 times more than beef. One kilo of corn protein causes 22 kilos of topsoil loss. One kilo of beef protein causes 145 kilos loss. Growing spirulina causes no soil erosion, and does not even need fertile land.
