Sudden climatic transformations in Antarctica can lead to “severe consequences for generations”, experts warn

Sudden changes and perhaps irreversible in Antarctica Lead Climate Scientists warned on Wednesday that raising the global oceans by a meter and leading to “severe consequences for generations.”

On a broader scale, a review of a state of knowledge through a degree of senior experts revealed the rapid transformations throughout the region, which is often the cause and impact of global warming, according to A study published in natureThe International Scientific Journal, which the pendants reviewed.

The authors of the study suggest that the limit Carbon dioxide emissionsIn turn, preventing global warming from exceeding at least 1.5 ° C, “will be” necessary to reduce the broad effects of sudden changes in the ocean in the southern ocean.

“The main author and Australian university professor Nerry Abram, the agent of France,” told France Pens. “It will be difficult to stop some of these sudden changes.”

Abram said that the transformations in various aspects of the climate system in Antarctica were amplified by each other and the pace of warming worldwide as well.

The study was considered evidence of sudden change – or “regime transformations” – in marine ice, regional oceans, ice continent’s shelves, ice shelves and marine life. He also studied how they interact.

The floating ice does not significantly add to the sea level when it melts, but its decline replaces the white surfaces that reflect almost all the sun’s energy to the space with deep blue water, which absorbs the same amount instead.

Ninety percent of the heat resulting from the human warmtening phenomenon by the ocean.

Lowering ice retreat

After a little increase during the first 35 years in which satellite data was available, Sea iceberg in Antarctica It has decreased significantly over the past decade.

Since 2014, SEA ICE has declined on average 120 km, or about 75 miles, from the coastal line on the continent. This shrinkage occurred three times faster in 10 years of lowering marine ice in the Arctic at approximately 50.

By July 2025, the daily marine ice was in both hemispheres at the lowest level in the satellite record for 47 years, according to what he said. Snow and National ice data center At Colorado Bulder University.

Data from NASAAnd released in 2020, indicated that Antarctica and Greenland lost thousands of gigs of ice between 2003 and 2019, Unfortunately contribute For more than half an inch of sea level rise around the world.

Last September, scientists warned this Ice cover in AntarcticaIt is called Thwaites Glacier, which will deteriorate “further and faster”, with the increased melting of melting expected to lead to sea level rise. Research conducted by the international cooperation of Thweets Glacier, a group of more than 100 scientists, has found that the volume of water flowing to the sea from Thwaites Glacier and others may double from the nineties to 2010.

And the study, which was published, published on Wednesday, found that “the overwhelming evidence of the transformation of the regime in marine ice” means that in current directions, Antarctica can become ice -free in the summer in a closer time than the Arctic, and the last study that was published on Wednesday found in Nature.

Experts have warned that this will accelerate warming in the region and beyond, and can push some marine species towards extinction.

Over the past two years, for example, the indisputable emperor’s chicken has perished in multiple reproductive areas, strange or freezing to death when marine ice benefited from the usual under their small feet.

Of the five sites monitored in the Bilgeshevin Sea region in 2023, all of which witnessed a 100 % loss of chicks, according to previous research.

Unlike marine ice, ice boards and ice shelves that connect to it – or is supported by the ground.

The world will need to heat it by 5 degrees Celsius compared to the pre -industrial levels to dissolve the ice cover in the entire Antarctica, raising the global oceans approximately 58 meters, or nearly 200 feet.

Nobility

The study said that global global warming so far – on average of about 1.3 ° C – quickly approaches the threshold that would cause part of the ice cover to generate at least three meters from sea level rise, and the coastal areas that live today are flooded with hundreds of millions.

Abram said: “The collapse that cannot be stopped in the western ice cover in the Antarctic is one of the most global turning points.”

“The evidence indicates that this is operated in the global warming phenomenon much lower than 2 ° C.”

Another potential risk is the collapse of blood circulation that reverses in Antarctica, and a system of peripheral currents that distribute heat and nutrients within the region and the world.

It has already started “a rapid and large slowdown” of currents, and evidence from the previous intercourse – between two years on ice – before we have, 125,000 years ago, indicating a sudden stagnation of the regime under conditions similar to those seen today.

The study stated that “this would lead to the effects of climate and ecological system on a large scale,” starting from the intensification of global warming to a decrease in the ability of the ocean to absorb carbon dioxide.

Ultimately, the only way to slow up the interlocking changes is to stop adding more gases aimed at the planet to the atmosphere.

Abram said: “The decisions of greenhouse gas emissions that we make during the next contract or decade will transfer the amount of ice that we will lose and the extent of its loss.”