Two alternative strategies have evolved to make use of this ability: C4 photosynthesis, which manipulates the concentration of CO2 in space, and CAM photosynthesis, which manipulates the concentration in time.
Mikakati miwili mbadala imeibuka ili kutumia uwezo huu: Usanisinuru wa C4, ambao hudhibiti mkusanyiko wa CO2 angani, na usanisinuru wa CAM, ambao hudhibiti mkusanyiko kwa wakati.