We present radiative forcing (RF) estimates by snow algae in the Antarctic Peninsula (AP) region from multi-year measurements of solar radiation and ground-based hyperspectral characterization of red and green snow algae collected during a brief field expedition in austral summer 2018. Mean daily RF was double for green (~26 W m⁻²) vs. red (~13 W m⁻²) snow algae during the peak growing season, which is on par with midlatitude dust attributions capable of advancing snowmelt.