Nutrient recovery from WW results in liquid fertilizers, struvite, biomass, and sludge as products. worked on duckweed wastewater treatment with biorefinery options and identified that the pond construction had the highest share for global warming potential (GWP). Meanwhile, it was also reported that the GWP varied between 0.27 -0.47 kg CO2 Eq./m 3 of WW treated based on the treatment system employed. In addition, microalgae-based treatment system had a reduction in GWP by about 40%. Similar estimates were reported for struvite crystallization with a GWP of 27 kg CO2 Eq./kg P (Rodriguez-Garcia et al., 2014). Industrial data suggests that GWP can be negative, while precipitating struvite at -1.4 kg CO2 Eq./PE/Year (AirPrex, 2022). Microalgae based nutrient recovery options had a wide range of GWP based on the choice of technology between -0.180 and 2.1 kg CO2 Eq./m 3 of WW . This can be attributed to the variation in the energy consumption between different methods employed and end use of algae.