A recent satellite study has found a 22% decrease in emperor penguin numbers across 16 colonies in Antarctica between 2009 and 2024. The study was published on June 10, 2025, and looked at areas such as the Antarctic Peninsula, Weddell Sea, and Bellingshausen Sea. The main reason for the decline is the fast loss of sea ice caused by global warming. Emperor penguins need stable sea ice to breed and find food. According to Peter Fretwell from the British Antarctic Survey, the shrinking ice is seriously affecting their habitat. Older studies showed a 10% drop in population, but the new research shows the problem is more serious and focused in certain areas.

Scientists used satellite images and population models to estimate how many penguins live in each colony. The 16 colonies in the study represent about 30% of the world’s emperor penguin population. Experts warned that if sea ice continues to disappear, predators like leopard seals and orcas may reach penguin nesting areas earlier than before. Changes in sea temperature and weather are also expected to reduce food and make it harder for chicks to survive. Penguin researcher Daniel Zitterbart, who did not work on the study, said the results are serious and have never been seen before. The study adds to growing concerns about the survival of emperor penguins in a warming climate.