Human evolution, C3 and C4 plants in permaculture, Atmospheric transformations.

I thought I would post this paper I just wrote as it had some inspiration from permaculture in it.  Also it contains many interesting aspects about plants that are not generally discussed such as what are C3 and C4 plants.  

check it out here if you want a stimulating read and let me know what you think!!!  Enoy

https://www.researchgate.net/publication/325011584_Critical_steps_in_the_evolution_of_Earth_and_Life_Moment_5-Evolution_of_C3_and_C4_plants_past_and_future_Kristopher_Dekan

if you can't open it let me know I will attach it...