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Penguin poop could be accelerating Antarctic decline: Study
New York Post • • science
Key Points:
- A new study reveals that penguin droppings are fertilizing algae blooms on the Antarctic Peninsula, causing green snow that melts faster than white snow and accelerating local snow melt.
- The green snow algae absorb 40% more energy, increasing the rate of melting, and penguin guano acts as a fertilizer that fuels these dense algae blooms during the Antarctic summer.
- This biological darkening effect, linked to penguin activity, is a critical but previously overlooked factor in projections of ice-free area expansion in Antarctica.
- The world's largest penguin colony has seen a significant decline due to rising sea temperatures affecting their food supply, and penguins moving further south may cause this greening effect to spread.
- While penguin droppings also release gases that may promote cloud formation and potentially slow ice melt, the overall impact of penguins on Antarctic climate dynamics remains uncertain and requires further study.
