A new satellite study shows that emperor penguin numbers dropped by 22% from 2009 to 2024. The study came out on June 10, 2025. It looked at 16 penguin colonies in parts of Antarctica, including the Antarctic Peninsula, Weddell Sea, and Bellingshausen Sea. The main reason for the drop is the fast melting of sea ice. This is happening because the Earth is getting warmer. Emperor penguins need strong sea ice to make nests and to find food. A scientist named Peter Fretwell said that the ice is getting smaller and it is hurting the penguins’ home.

The researchers used satellite pictures and math to count the penguins. These 16 colonies are about 30% of all the emperor penguins in the world. Scientists said that if the sea ice keeps melting, animals like leopard seals and orcas might come to the colonies earlier and eat the penguins. Also, the water is getting warmer and the weather is changing, which may make it hard for chicks to grow and find food. Another expert, Daniel Zitterbart, said this problem is very serious. The study shows that emperor penguins are in danger because of climate change.