The Doomsday Glacier

By Ethan Lee

Glaciers are a major factor driving rapid sea-level rise; as global temperatures rise, their melt rate increases exponentially. As a BBC article claims that "Between 2000 and 2023, glaciers outside the major ice-sheets of Greenland and Antarctica lost around 270 billion tonnes of ice a year on average", more people are realizing the gravity of the situation. But in recent decades, scientists have been studying one particular glacier — the Thwaites Glacier, also known as the "Doomsday Glacier". The melting of this unique glacier may quite possibly signal grave danger for the future of our world.

The Doomsday Glacier is a massive ice formation in West Antarctica, nicknamed for its potential to trigger catastrophic global sea-level rise. It is considered the world's widest glacier, spaning abot 120 kilometers and covering roughly 192,000 square kilometers — close to the size of Britain or Florida. The glacier was first sighted by U.S. researchers in 1940, and later photographed by the U.S. Navy in January 1947. Scientists are still trying to determine the initial causes of such a large glacier formation, as well as the mechanisms behind it.

For years, scientists have been worried about the Doomsday Glacier's ultimate collapse, primarily because its melting could raise global sea levels by over 60 cm to 3 meters. The effect of rising sea levels is horrifying: first, erosion speed would accelerate, meaning that soil fertility is reduced and agricultural yields decrease significantly. Moreover, the frequency of floods increases, which will create a huge mess around cities. If the Doomsday Glacier is large enough to impact sea levels hugely, the permanent submergence of land is also possible. Coastal zones or areas of low altitude are the very first victims of permanent submergence, such as Tuvalu or the Maldives.

To decelerate the speed of the Doomsday Glacier, global efforts are crucial. Countries around the world must take part in mitigating actions that reduce global temperatures, since a few countries' efforts are not enough to prevent the global effects of climate change. Researchers are currently using the Doomsday Glacier to find the major causes of rapid glacier melting, and have found that "underwater storms and warm water intrusion" increase melting speed. As scientists uncover deeper truths about the glaciers, we humans can live a more eco-friendly life to preserve the Doomsday Glacier for as long as possible.

Works Cited

Poynting, Mark. “Climate Change: World’s Glaciers Melting Faster than Ever Recorded.” BBC, 19 Feb. 2025, www.bbc.com/news/articles/cy4ly8vde85o.
NASA Earth Observatory. “Thwaites Glacier Transformed.” NASA Science, 6 Feb. 2020, science.nasa.gov/earth/earth-observatory/thwaites-glacier-transformed-146247/.
Jeremy Hance. "Huge Cavities Threaten Thwaites Glacier in Antarctica." Earth Island Journal, Earth Island Institute, 31 Jan. 2019, https://www.earthisland.org/journal/index.php/articles/entry/huge-cavities-threaten-thwaites-glacier-antarctica/
Cahill, Eva. “Scientists Begin Unprecedented Tests on “Doomsday Glacier.”” Oceanographic, 29 Jan. 2026, oceanographicmagazine.com/news/scientists-begin-unprecedented-tests-on-doomsday-glacier/.

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