Penguin poo helps keep Antarctica cool

Adelie penguins on sea ice off the Antarctic Peninsula Ashley Cooper pics/Alamy Fumes of ammonia rising from piles of droppings in Antarctica’s crowded penguin colonies help boost the formation of clouds, which have a cooling effect by reflecting sunlight away from the surface. “This demonstrates a deep connection between the ecosystem and atmospheric processes,” says Matthew…

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Lululemon beats on Q1 2025 earnings, cuts outlook

Lululemon beat Wall Street expectations for fiscal first-quarter earnings Thursday, but cut its full-year earnings guidance, citing a “dynamic macroenvironment.” As the company navigates tariffs and fears about a slowing U.S. economy, CEO Calvin McDonald said in a news release that “we intend to leverage our strong financial position and competitive advantages to play offense,…

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