Researchers Identified Vulnerable Antarctic Ice Basin
The Wilkes Subglacial Basin contains enough ice to raise sea levels by four metres, prompting calls for urgent study.
Updated on Sept. 29, 2026 in Environmental
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Scientists have identified the Wilkes Subglacial Basin in East Antarctica as a highly vulnerable region that requires immediate international study. This research is necessary to assess the risk of significant ice sheet retreat, which could trigger a global sea level rise of up to four metres.
Why it matters
Current atmospheric CO2 levels of 426 parts per million have surpassed the 365 to 415 parts per million range observed during the Mid-Pliocene, when significant ice sheet retreat previously occurred. This research is essential because changes in East Antarctica are currently unfolding faster than scientists had anticipated.
The Wilkes Subglacial Basin holds enough ice to potentially raise global sea levels by four metres. This volume of ice is under investigation to determine how its stability compares to the documented retreat during the Mid-Pliocene period three million years ago.
The details
Researchers plan to drill through the Antarctic ice sheet to extract rock and sediment samples to study historical conditions. This process requires the coordination of multiple icebreakers to navigate the remote East Antarctic region. By analyzing the geologic core samples, scientists aim to understand the mechanisms behind the basin's sensitivity to current atmospheric CO2 concentrations.
Timeline
3 million years ago: Mid-Pliocene climate conditions led to significant ice sheet retreat.
2032: The proposed deadline for beginning the international research effort.
5 to 10 year timeline: The projected duration required to complete the international study.
The Tech Race
The study draws on the Mid-Pliocene global warming period to evaluate current environmental trajectories. Researchers are racing to secure international cooperation to understand these dynamics before the 2032 target window.
This research provides the foundational data needed for global climate models, which influence long-term coastal planning and infrastructure policy. While the project is in the planning phase, it signals a shift in focus toward managing risks associated with East Antarctic ice stability.
The takeaway
This research initiative highlights the critical need to better understand the sensitivity of East Antarctic ice to modern atmospheric carbon levels. Readers should monitor progress toward the 2032 research start date to see how findings refine future sea level rise projections.
What happens next
The international research community has established 2032 as the deadline to begin the coordinated drilling project.
Further reading
For more on the changing stability of ice sheets, visit the /science/environmental/ section.
Source note: This article includes information reported by Science Media Centre NZ.
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