Emperor penguins classified as endangered amid climate threats

The International Union for Conservation of Nature has added emperor penguins and Antarctic fur seals to its endangered list following sharp population declines. The southern elephant seal's status has shifted from least concern to vulnerable. Officials attribute these changes primarily to climate change and disease.

The IUCN Red List now classifies the emperor penguin (Aptenodytes forsteri) and Antarctic fur seal (Arctocephalus gazella) as endangered. Satellite data indicates a 10% drop in emperor penguin numbers between 2009 and 2018, affecting over 20,000 adults. Projections point to the population halving by the 2080s due to shifting sea ice patterns from human-induced climate change, according to Philip Trathan of the British Antarctic Survey and IUCN Species Survival Commission member. He stated, “Early sea-ice break-up in spring is already affecting colonies around the Antarctic, and further changes in sea-ice will continue to affect their breeding, feeding and moulting habitat.”

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Officials from nearly 60 countries that are signatories to the Antarctic Treaty have begun annual meetings in Hiroshima to address protection and management of the region, with emperor penguins receiving particular attention.

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New studies indicate that stronger winds and warming deep ocean water have triggered a sharp decline in Antarctic sea ice since 2016. Previously expanding, the ice reached a record high in 2014 before plummeting to record lows. Researchers link this shift to wind-driven upwelling of circumpolar deep water.

A new study shows that channels beneath Antarctic ice shelves can trap warm ocean water and accelerate melting from below. Researchers focused on the Fimbulisen Ice Shelf in East Antarctica and found that this process may make even cold regions more vulnerable. The findings suggest current climate models could underestimate future sea level rise.

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Glaciers in the Pamir mountains of central Asia lost a record amount of ice last year after decades of stability. Researchers link the sudden melt to prolonged extreme heat across the region.

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