On Sunday, March 23, Animal Planet will air a 60 minute broadcast about the Adelie penguins of Antarctica and the challenges they face due to rapid climate change. Return to Penguin City will feature the work of scientists Grant Ballard and Viola Toniolo.

Animal Planet’s description of Return to Penguin City:

“Millions of Adelie penguins storm the beaches of Antarctica every October, as they undertake an annual migration to their breeding grounds. For over half a century, researchers have been coming here, hoping to unlock the secrets of these penguins’ lives. Braving fierce storms, outsmarting predators, and scaling rogue icebergs — these birds are extraordinary survivors. But they may now face the ultimate challenge. In Return to Penguin City, scientists Grant Ballard and Viola Toniolo discover that rapid climate changes may not only affect the penguins in Antarctica, but could also have major repercussions well beyond this remote corner of the world.”

Return to Penguin City premieres Sunday, March 23 at 7 p.m. (ET/PT) on Animal Planet. A video clip is available on the Animal Planet website.