Ice still covers a significant portion of the planet—about 10% of the land surface and 7% of the oceanic surface. However, its volume is rapidly shrinking due to human activity, posing a serious threat to ecosystems and the stability of the planet's climate system. For this reason, the United Nations has declared 2025 the International Year of Glacier Preservation.
Melting Glaciers Threaten Large-Scale Consequences for the Planet. Among the most severe threats are rising sea levels, leading to increased flooding and the risk of entire countries being submerged, as well as the intensification of global warming due to the reduced reflectivity of the Earth's surface. Snow and ice cover reflect up to 90% of solar radiation, and their loss accelerates the process of climate change.

Antarctica: A Critical Freshwater Reserve and a Threat to Penguins

Antarctica holds 61% of the planet's freshwater. However, in 2023, the extent of Antarctic sea ice reached its lowest level in recorded satellite history, losing an area comparable to the combined size of the United Kingdom, Germany, France, and Spain.
Antarctica. February 2024.
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Iceberg near King George Island, Antarctica.
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A fractured iceberg in Antarctica. February 2024.
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Shushmit Glacier.
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This has created a critical threat to emperor penguins, which rely on stable ice for breeding. The premature breakup of ice sheets leads to the death of chicks that have not yet developed waterproof feathers. Already, one in five penguin colonies is facing severe challenges. However, research suggests that some penguins are adapting by migrating to more stable ice formations and even nesting on icebergs. According to Peter Fretwell of the British Antarctic Survey, this adaptation offers a glimmer of hope, though without significant reductions in greenhouse gas emissions, the species’ population could decline by 99% by the end of the century.
Adélie penguins inhabit Horseshoe Island in Antarctica. These birds lay their eggs exclusively on pebble-covered areas free of snow and ice. However, in recent years, increased rainfall and wet snow have led to the death of embryos inside eggs and featherless chicks, which become soaked and suffer from hypothermia. According to scientists' projections, by the end of this century, the Adélie penguin population could decline by 60%.
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Emperor penguin on Horseshoe Island, Antarctica.
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Arctic: The Fastest-Melting Region

Arctic ice is disappearing faster than anywhere else on the planet, losing about 13% of its volume every decade since satellite observations began in 1979. Initial climate predictions are materializing much sooner than expected: the ice extent originally forecasted for 2050 has already been recorded today. Oceanographer Irina Repina warns that the Arctic could lose its summer ice cover even earlier than anticipated. Today, ice in the region has already become a seasonal phenomenon.

Svalbard: At the Heart of Climate Change

Svalbard, located between Norway and the North Pole, is one of the fastest-warming regions in the world. More than half of its landmass is covered in ice, but summer temperatures now exceed historical averages by 4°C, leading to the rapid melting of glaciers. Swedish photographer Christian Åslund has been documenting this alarming phenomenon by comparing modern and historical images of the region. He emphasizes that the Arctic is where the consequences of the climate crisis are most visible and dangerous.
View of glaciers on Svalbard and Jan Mayen. July 2024.
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Aerial view of the Bråsvellbreen Glacier. The photograph was taken during the 4th National Arctic Scientific Research Expedition in the Arctic Ocean, conducted by Turkey.
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"This series of photographs illustrates how rapidly our planet is changing as the climate crisis intensifies. The Arctic is our climate sentinel—this is where the climate and oceanic crises converge, and where their consequences are most visible and acutely felt."

Christian Åslund, Photographer
Top: A historical panoramic image from the Norwegian Polar Institute, taken in 1967, showing the Kongsbreen and Kronebreen glaciers.
Bottom: A panoramic image taken from the same location by photographer Christian Åslund in August 2024.
Christian Aslund, Greenpeace
Historical photograph of the Kongsbreen Glacier (Ny-Ålesund, Svalbard), taken in 1918 by the Norwegian Polar Institute.
Norwegian Polar Institute
Photograph taken from the same location in August 2024.
Christian Aslund, Greenpeace
Archival image of the Blomstrandbreen Glacier in 1918.
Norwegian Polar Institute
The same location in August 2024.
Christian Aslund, Greenpeace
The Kronebreen, Kongsbreen, and Kongsvegen glaciers stretching across Kongsfjorden, as seen from Zeppelin Mountain, 1939.
Norwegian Polar Institute
The same view in August 2024.
Christian Aslund, Greenpeace
One of the key drivers of accelerated melting is the ice-albedo feedback effect: the formation of melt ponds on the surface of sea ice reduces its ability to reflect sunlight, leading to further warming and the continued retreat of glaciers.
Aerial view of melt ponds and a polar bear on the Svalbard and Jan Mayen islands in the Arctic.
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Nordaustlandet—the second-largest island of Svalbard. The images show water and precipitation flowing from the coastline into the Arctic Ocean.
NASA Earth Observatory
Aerial view of the Bråsvellbreen iceberg on Svalbard and Jan Mayen. July 2024.
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Greenland

Melting icebergs near the town of Ilulissat, Greenland.
Sean Gallup
Nordaustlandet—the second-largest island of Svalbard. The images show water and precipitation flowing from the coastline into the Arctic Ocean.
NASA Earth Observatory
Air bubbles trapped in water beneath a thin ice layer inside a depression formed by cryoconite. Cryoconite is a mixture of dust, soot, and other particles that accumulate on the surface of ice. These dark patches absorb solar heat, accelerating the melting of the ice beneath them and forming small pits. According to a 2024 study, the melting rate of Greenland's glaciers is approximately 20% higher than previously estimated.
Sean Gallup
Russell Glacier, Greenland.
Sean Gallup

Mountain Glaciers: A Freshwater Source Under Threat

Mountain glaciers play a crucial role in maintaining water balance in arid regions such as the La Paz area in Bolivia, Central Asia, Tuva, and Mongolia. Their melting leads to a reduction in freshwater reserves, causing water shortages and worsening living conditions for local populations. In Central Asia, where glaciers feed key water systems such as the Syr Darya, Amu Darya, and Ili rivers, glacial water supply is expected to decrease by one-third by the end of the 21st century, negatively impacting ecosystems and regional economies.
Thus, the protection of glaciers has become a critically important global challenge. Preserving ice is not just about maintaining natural beauty and biodiversity—it is a necessary condition for human survival in the face of an accelerating climate crisis.

The Alps

A depression on the surface of the Glacier du Tour filled with meltwater. The snow on the glacier has taken on an unusual hue due to dust carried by the wind from the Sahara Desert. The Glacier du Tour, approximately five kilometers long, is one of the many glaciers in the Mont Blanc massif. According to local glaciologists, if climate conditions remain unchanged, the Glacier du Tour—along with other glaciers in the region located below 3,500 meters—will completely disappear by the end of the century.
Sean Gallup
Mountaineers traverse the ice near crevasses on the Glacier du Tour.
Sean Gallup
Remnants of snow and ice on the Watzmann Glacier in Bavaria.
Angelika Warmuth
Part of a rock avalanche visible near the settlement of Rauris, Austria. October 2024.
Kerstin Joensson
Entrance to an ice cave at the tongue of the Rhône Glacier in Obergoms, Switzerland.
Denis Balibouse
A small section of the Rhône Glacier is covered with a special insulating fabric to help slow its melting. This glacier is located near the village of Gletsch in the Swiss Alps.
Fabrice Coffrini
Ivan Kondratenko