As if a faucet had been opened in the ocean, warm water begins to reach Antarctica, breaks through the natural protection of the ice shelves, and intrigues scientists about the upcoming impacts on the global climate.

Written by Caio Aviz

Published on 29/04/2026 at 00:49

Updated on 02/05/2026 at 12:52

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Scientific study reveals advance of deep warm water and explains increasing risks to glaciers that protect the continent

Scientists have identified a significant change in ocean behavior, reinforcing the warning about Antarctica’s future. Deep warm ocean water is advancing towards the icy continent, as shown in a study published on Monday, in 2026, in the scientific journal Communications Earth & Environment.

The research was led by the University of Cambridge, in partnership with the University of California, based on data collected over decades. Thus, this thermal advance represents a direct risk to the ice shelves, which support the stability of the region’s glaciers.

Investigation confirms silent advance over two decades

Researchers identified that a mass of warm water has gradually expanded and advanced towards Antarctica over the past 20 years. For this, they used long-term oceanographic measurements obtained by ships and floating robotic devices.

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Ocean absorbs heat and accelerates changes in the climate system

Scientists explain that the phenomenon occurs due to global warming, which alters the thermal balance of the oceans. More than 90% of the excess heat generated by human activities is absorbed by the oceans, while the Southern Ocean holds a large part of this storage.

***Advance of warm water in the Southern Ocean alters ice dynamics and exposes platforms in Antarctica to greater risk of melting, according to a recent study***.

In this scenario, the redistribution of heat favors the advance of warm water towards Antarctica. Thus, the observed process is part of a broader transformation of the global climate system.

Melting from below compromises platform stability

According to Joshua Lanham, from the Department of Earth Sciences at the University of Cambridge, warm water flows under the ice shelves and causes melting from the base. This process compromises the stability of these structures over time.

As a consequence, the ice shelves become more fragile and susceptible to collapses. These formations act as natural barriers that prevent the accelerated advance of continental glaciers, which increases the importance of this balance.

Risk of sea level rise comes into focus

Researchers highlight that the main risk is linked to the increase in sea level. Ice shelves help contain large volumes of ice from the interior of Antarctica.

These masses store enough fresh water to raise sea levels by about 58 meters. When these barriers weaken, glaciers advance more rapidly towards the ocean, which can accelerate this process on a global scale.

Change in ocean circulation alters natural protection

In the past, a layer of cold water protected the ice shelves and hindered melting. This thermal barrier functioned as a natural protection mechanism.

However, according to Sarah Purkey, from the Scripps Institution of Oceanography, this dynamic has changed. Ocean circulation now allows warmer waters to reach previously protected regions.

The scientist compares this scenario to a “hot water tap” opened in the ocean, raising the surrounding temperature.

Impacts extend beyond Antarctica and affect the global climate

Beyond ice melt, the phenomenon generates broader consequences. According to Professor Ali Mashayek from the University of Cambridge, the Southern Ocean regulates global heat and carbon storage.

Therefore, changes in this region directly influence the global climate system. These alterations can impact weather patterns in various parts of the planet.

Thus, the advance of warm water in Antarctica ceases to be a local problem and becomes a global challenge.

Given this scenario, how will the continuous advance of warm water influence climate balance and sea levels in the coming decades?

As if a faucet had been opened in the ocean, warm water begins to reach Antarctica, breaks through the natural protection of the ice shelves, and intrigues scientists about the upcoming impacts on the global climate.

Scientific study reveals advance of deep warm water and explains increasing risks to glaciers that protect the continent

Investigation confirms silent advance over two decades

Ocean absorbs heat and accelerates changes in the climate system

Earth is “pulling” water from the oceans into the core at nearly 3,000 km deep, and scientists finally explain how this slow and invisible process may be completely transforming the planet from the inside over billions of years.

Melting from below compromises platform stability

Risk of sea level rise comes into focus

Change in ocean circulation alters natural protection

Impacts extend beyond Antarctica and affect the global climate

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As if a faucet had been opened in the ocean, warm water begins to reach Antarctica, breaks through the natural protection of the ice shelves, and intrigues scientists about the upcoming impacts on the global climate.

Scientific study reveals advance of deep warm water and explains increasing risks to glaciers that protect the continent

Investigation confirms silent advance over two decades

Ocean absorbs heat and accelerates changes in the climate system

Earth is “pulling” water from the oceans into the core at nearly 3,000 km deep, and scientists finally explain how this slow and invisible process may be completely transforming the planet from the inside over billions of years.

Melting from below compromises platform stability

Risk of sea level rise comes into focus

Change in ocean circulation alters natural protection

Impacts extend beyond Antarctica and affect the global climate

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China is building an artificial island in the middle of the sea, covering 20 km², to construct the largest offshore airport in the world, the Dalian Jinzhouwan. This $4.3 billion project is anchored on more than 3,000 pillars embedded in the rock beneath the ocean and is scheduled to open in 2035.

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