Penguin droppings are contributing to snowmelt in Antarctica while simultaneously keeping algae on the snow surface green, according to AGU Newsroom. The outlet reported the finding on Wednesday, October 7, 2026.
The report describes a link between penguin guano and two connected effects: the melting of snow and the persistence of algae. According to AGU Newsroom, the waste is responsible for both outcomes, with the algae staying green as a result.
The finding adds to the understanding of how wildlife activity shapes the Antarctic environment. According to AGU Newsroom, the guano affects the snow it lands on, and that same material supports the algae's color.
The headline from AGU Newsroom frames the relationship directly: penguin poop is melting Antarctic snow by keeping algae green. That wording places the waste at the center of both processes.
Antarctica's snow surface is sensitive to changes that alter how much sunlight it absorbs, and the presence of algae is part of that picture. The AGU Newsroom report ties the algae's condition to the guano rather than to other factors.
What to watch next: whether further research quantifies how much melt the guano causes and how long the algae remain green.
