This is the best summary I could come up with:

More than 90% of emperor penguin colonies are predicted to be all but extinct by the end of the century, as the continent's seasonal sea-ice withers in an ever-warming world.

But the research team watched as sea-ice under emperor rookeries fragmented in November, before thousands of chicks had had time to fledge the slick feathers needed for swimming.

Antarctic summer sea-ice has been on a sharp downturn since 2016, with the total area of frozen water around the continent diminishing to new record lows.

Between 2018 and 2022, roughly a third of the more than 60 known emperor penguin colonies were affected in some way by diminished sea-ice extent - whether that's ice forming later in the season or breaking up earlier.

She links the causes for the current decline to anomalously warm ocean water around the continent and a particular pattern of winds, which in the case of the Bellingshausen, has pushed ice back towards the coast, making it difficult to spread.

Currently, emperors are classified as "Near Threatened" by the International Union for Conservation of Nature (IUCN), the organisation that keeps the lists of Earth's most endangered animals.

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