Scientists say the West Antarctic Ice Sheet could collapse with very little additional warming and the four metres of sea level rise that would follow cannot be stopped once it begins - Space Daily
A new climate modeling study suggests the West Antarctic Ice Sheet could face an irreversible collapse if ocean temperatures rise slightly. This process could lead to four meters of sea level rise over centuries.
Why it matters
Understanding the tipping points of polar ice sheets is critical for long-term global climate adaptation and coastal planning.
A modelling study published in Communications Earth & Environment in June 2025 found that the West Antarctic Ice Sheet could begin an irreversible collapse at ocean temperatures between zero and 0.25°C above current…
The article summarizes scientific findings and explicitly notes that it is a single model rather than a settled consensus.
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