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New Study Warns Antarctic Peninsula Faces Irreversible Damage Without Rapid Emissions Cuts
Higher emissions could cause irreversible ice shelf collapse, 20% sea ice loss, and major impacts on native species, researchers warn in modeling study.
On February 20, Professor Bethan Davies and an international research team published a Frontiers in Environmental Science study warning of severe Antarctic Peninsula impacts if emissions continue.
Researchers modelled three emissions pathways—low‑emissions , medium‑high , and very high by 2100—using CMIP6 climate models and eight environmental aspects to reduce uncertainty.
Under the very high‑emissions scenario, days above 0 degrees Celsius could rise from 19 to 48, and sea ice coverage would reduce by 20 percent, while warmer oceans erode ice shelves and reduce krill, harming penguins.
Triggering marine ice sheet instability would make many changes irreversible, with sea level rise up to 116 millimeters and roughly six million people exposed per centimetre of sea level rise.
Humanity’s choices over the next decade are critical, and acting quickly to curb emissions could protect the Antarctic Peninsula under a low‑emissions pathway limiting warming to no more than 3.24°F.