Armed with low-tech gear and high-minded notions that penguin populations hold the key to human survival, Ron Naveen and his intrepid biologists have tracked 200 colonies of penguins over half a million square miles for more than 20 years. They’ve learned that penguins truly are the canaries in the coalmine. Ron believes the penguins are sending game-changing signals about how to cope with one of the world’s most rapidly warming climates and increasingly volatile weather.

Directed and produced by Peter Getzels and Harriet Gordon Getzels.