 
        
            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…



 
                         
                         
                         
                         
                         
                         
         
         
         
         
         
         
         
        