IT·SCIENCE

'Forget the polar bears — people are dying': How the poles became a danger zone in just a decade

by
Kim Kwang-woo
Published : June 21, 2026 - 19:00:00
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A gaunt polar bear searches for food. [National Geographic]
A gaunt polar bear searches for food. [National Geographic]

"This is no longer just a polar bear problem."

When most people think of climate change, a familiar image comes to mind: a polar bear teetering on a shrinking sliver of ice.

At some point, "save the polar bears" became the face of the broader environmental movement — and with it, calls to act on climate change were often dismissed as the concerns of the privileged.

But that framing is outdated. The creatures whose survival is now threatened by melting ice are no longer polar bears. They are us.

A polar bear struggles to cross melting sea ice. [WWF]
A polar bear struggles to cross melting sea ice. [WWF]

Reports of disappearing ice at the Arctic and Antarctic arrive almost daily. Yet for most people, they barely register.

Modern life presents too many immediate problems to spare much attention for a crisis unfolding in places most people have never visited and few call home.

But the changes at the poles cannot be brushed off as a sad story about animals struggling to survive.

A group of polar bears rummages through residential trash bins. [WWF]
A group of polar bears rummages through residential trash bins. [WWF]

The polar regions are the backbone of the ocean current systems that drive the entire planet's climate. When they break down, the invisible rules that sustain our lives break down with them.

The vast civilizations humanity has built were constructed within those rules. Tragically, we do not yet have the capacity to reverse, predict or adapt to a world where those rules no longer apply.

What makes this especially alarming is that the transformation of the poles is accelerating. What was once a warning that our lives would eventually change has begun to materialize as actual disaster.

'Frozen land' in name only: Why the pace of change is so alarming

According to the World Meteorological Organization's State of the Global Climate 2025 report, released in March, the global average temperature last year was 1.43 degrees Celsius above the pre-industrial baseline (the 1850–1900 average). The decade from 2015 to 2025 was the hottest 10-year period ever recorded in human history.

The shift is palpable even in everyday life. The far more sensitive polar ecosystems are changing at an even faster pace. According to a polar report released last year by the National Oceanic and Atmospheric Administration, the Arctic recorded its warmest year on record from October 2024 through September 2025.

Sea ice. [Getty Images Bank]
Sea ice. [Getty Images Bank]

The Arctic is warming at a particularly rapid rate. Since 2006, autumn and winter atmospheric temperatures in the Arctic have risen at more than twice the global average. Warmer winters mean ice cannot thicken sufficiently. As a result, older ice that could survive the following summer diminishes, exposing more open ocean. That exposed water absorbs sunlight, warming the Arctic faster still. It is a vicious cycle.

There are also signs that the Arctic's long-stable weather patterns are undergoing a fundamental shift. In June last year, Arctic snow cover was roughly half of what it was 60 years ago — snow that accumulates in winter is melting away as spring and summer arrive.

The amount of snow blanketing the Arctic matters for a critical reason. Snow reflects sunlight, cooling the surface beneath it. When snow disappears, land and ocean absorb more heat, accelerating warming across the entire planet. The white shield that protected us is vanishing.

Sea ice. [Getty Images Bank]
Sea ice. [Getty Images Bank]

Sea ice tells the same story. According to NOAA, the oldest and thickest Arctic sea ice — perennial ice more than four years old — shrank by more than 95 percent compared to the 1980s as of late September 2025. Only thin, young ice remains.

And this is not just a summer phenomenon. NASA and the National Snow and Ice Data Center announced that the maximum extent of Arctic winter sea ice in March 2026 was 14.29 million square kilometers — effectively tied with 2025 as the lowest ever recorded.

The Arctic's terrestrial ecosystem has also undergone a fundamental shift in character, moving from a carbon "sink" to a carbon "source." Rising temperatures are thawing permafrost — ground that has been frozen for millennia. When that frozen earth thaws for the first time, the carbon locked inside is released into the atmosphere, driving further climate change.

A polar bear. [Getty Images Bank]
A polar bear. [Getty Images Bank]

In 2024, permafrost monitoring sites in North America and Svalbard recorded the highest subsurface temperatures ever measured, and nearby rivers and streams turned orange — a sign that materials long locked in the frozen ground had begun to leach out.

The changes extend to the ocean itself. NOAA reported that phytoplankton productivity in the Eurasian Arctic increased by 80 percent between 2003 and 2025, with the Barents Sea up 34 percent and Hudson Bay up 27 percent. At first glance, rising productivity might sound like good news.

But scientists interpret it as a signal that cold-water ecosystems are being displaced by subarctic and temperate ones. As the ocean warms, the distribution of plankton, fish and marine mammals shifts — destabilizing the food web.

Persfjord on the coast of Varanger National Park, Norway. [Getty Images Bank]
Persfjord on the coast of Varanger National Park, Norway. [Getty Images Bank]

The seas surrounding the Arctic are changing even more dramatically. In August 2025, the average sea surface temperature in the Atlantic-side marginal seas of the Arctic was about 7 degrees Celsius above the August average for 1991–2020. A process known as "Atlantification" — in which warmer, saltier Atlantic water penetrates deeper into the Arctic — is also underway, further accelerating sea ice melt.

The Arctic may no longer be a cold place. And the consequences of that transformation are large enough to devastate the lives of most of humanity.

The NSIDC estimates that if the Greenland ice sheet melted entirely, global sea levels would rise by about 7.4 meters; if the Antarctic ice sheet followed, levels could rise by roughly 60 meters. Human-driven changes to the planet's ecosystems could submerge most of civilization.

A warming Antarctica: Extreme heat events become the new normal

Antarctica has historically been seen as less vulnerable to climate change than the Arctic. While Arctic sea ice showed a clear and consistent decline year after year, Antarctic sea ice fluctuated widely. Between 2013 and 2015, extent was relatively high, and the continent was considered broadly stable.

That assessment is now obsolete. The turning point came a decade ago, in 2016. The National Snow and Ice Data Center said Antarctic sea ice has generally remained below its long-term average since 2016, and in 2023 both the summer minimum and winter maximum hit record lows.

Antarctic sea ice. [Getty Images Bank]
Antarctic sea ice. [Getty Images Bank]

Antarctic sea ice reached another near-record low in 2025. According to the NSIDC, the minimum extent on March 1, 2025 was 1.98 million square kilometers — the second lowest in 47 years of satellite observation, alongside 2022 and 2024.

Some experts point to the high natural variability of Antarctic sea ice and argue the recent lows are not dramatically different from historical fluctuations. But a growing number of scientists warn that a clear downward trend has emerged.

From 2022 through 2025, the annual minimum extent fell below 2 million square kilometers every single year — the four lowest readings in 47 years of records, set in four consecutive years. Analysts say Antarctica, like the Arctic, appears to have broken out of the cycle in which sea ice adequately recovers each winter.

Antarctic sea ice. [Getty Images Bank]
Antarctic sea ice. [Getty Images Bank]

Antarctic sea ice reached its 2025 annual maximum of 17.81 million square kilometers on Sept. 17. But even that figure ranked as the third lowest winter maximum in 47 years of satellite records — following the all-time low in 2023 and the second lowest in 2024. The pattern is clear: ice is failing to recover sufficiently not just in summer, but in winter as well.

The most striking change in the Antarctic ecosystem is the emergence of extreme heat events. According to a paper published in an international academic journal in April 2026, the most intense winter heat wave in 46 years of satellite observation struck Dronning Maud Land in East Antarctica in July and August 2024.

Regional average surface temperatures remained more than 9 degrees Celsius above normal for 17 consecutive days — in the middle of the Antarctic winter. The paper found that surface temperature anomalies at the Relay and Dome Fuji stations in August 2024 reached 30.1 and 30.9 degrees Celsius above normal, respectively. The planet's freezer had, in effect, broken down.

Sea ice. [Getty Images Bank]
Sea ice. [Getty Images Bank]

On June 6, an all-time June temperature record was broken at the northern tip of the Antarctic Peninsula, where an Argentine research station recorded 15.4 degrees Celsius — about 2.1 degrees above the previous June record of 13.3 degrees set in 1998. Compared to the historical June average of minus 6.2 degrees, the reading was more than 21 degrees above normal.

The atmosphere above Antarctica is also changing. The British Antarctic Survey, in a press release issued June 5, said that under a high-emissions scenario, extreme weather events such as "atmospheric rivers" over Antarctica could double by 2100, with associated precipitation increasing 2.5 times. Atmospheric rivers are narrow corridors of warm, moist air that can trigger heavy snowfall and rain over the continent.

Heavy snowfall can temporarily slow ice sheet loss. But when warm air and rain arrive together, they can trigger surface melting on ice shelves and accelerate their collapse.

A gaunt polar bear rummages through a residential trash bin. [YouTube / National Geographic channel]
A gaunt polar bear rummages through a residential trash bin. [YouTube / National Geographic channel]

Climate change is not a polar bear problem

The transformation of the poles signals that our own lives cannot remain unchanged. Sea ice acts as the planet's white shield, reflecting sunlight and regulating global temperatures. But as sea ice disappears, what remains is dark ocean that absorbs heat. That warmed water flows into circulation systems around the world, reshaping the entire climate.

The past decade of accelerating polar change is visible even in South Korea's own weather record. Record-breaking heat waves have become a summer fixture, and the unpredictable torrential rains that accompany them are also linked to rising sea surface temperatures. Warmer oceans release more water vapor, which accumulates in the atmosphere and then falls all at once.

Commuters shield themselves from the blazing sun with fans and their hands as they hurry to work at the Sejongno intersection in Jongno-gu, Seoul. Photo by Lim Se-jun
Commuters shield themselves from the blazing sun with fans and their hands as they hurry to work at the Sejongno intersection in Jongno-gu, Seoul. Photo by Lim Se-jun

High-temperature records have been broken repeatedly since 2018, reflecting a clear intensification of warming on the Korean Peninsula. The average number of heat wave days from 2015 to 2024 was 15.6 — the highest ever recorded. The intensity and frequency of summer downpours have also increased. This goes beyond a few unusually bad years; it shows that the Korean Peninsula's long-term warming trend has steepened sharply in recent years.

The cost of ignoring climate change will only grow more visible with time. A 2024 report by the Bank of Korea estimated that, without dedicated climate response policies, South Korea's gross domestic product could shrink by about 1.8 percent by 2050 and by roughly 21 percent by 2100.

[Yonhap]
[Yonhap]

Experts say a fundamental shift in how people think about climate and the environment is urgently needed. The issue, they argue, should no longer be framed around vague notions of saving polar bears or penguins — it is about humanity facing an existential crisis of its own making, and that reality needs to be made plain.

"One of the biggest problems is the widespread perception that climate and environmental campaigns are essentially acts of goodwill toward the planet, nature or animals," an official at a global environmental organization said. "What needs to sink in is that this is not about sympathy or a sense of moral superiority — it is a cry from people whose survival is under threat, asking to be saved."

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woo@heraldcorp.com
This content was produced with the assistance of AI translation services.

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