How Emperor Penguins Cool Their Own Skies
Penguins are brilliant indicators of the health of our planet. When you stand amongst the Snow Hill Emperor Penguin colony in Antarctica, it’s easy to realise that every single creature down there plays a vital role in keeping our fragile climate balanced. Not so easy to visualise if you haven’t been! And with only about 1.7 million people having ever visited Antarctica out of a global population of 8.3 billion, the odds are you haven’t had that chance. That is exactly why I see it as my role as an ‘ambassador’ for this extraordinary region to bring these vital stories directly to you. By sharing these fascinating new nuggets of information, I hope to show how interconnected we all are. It’s a gentle reminder that each of us, no matter where we live, can make small, daily changes that collectively slow down climate change – and help protect these magnificent Emperor penguins and the precious sea ice they depend on for survival.
So, returning to the point of this article, recently, scientists have uncovered a mind-blowing, slightly smelly fact that takes the phrase “nature provides” to a whole new level. It turns out that penguin poop – yes, you read that right, guano! – is actively involved in a natural process akin to cloud seeding that helps cool the Antarctic atmosphere (Cartier, 2025).
Read more

