The Aporia · Antarctic sea ice reached its third-lowest winter maximum in satellite records

NASA and the National Snow and Ice Data Centre report that Antarctic sea ice reached its third-lowest winter maximum extent on September 14, covering an estimated 17.59 million square kilometres. This is nearly a million square kilometers below the long-term average. Scientists emphasize that the four lowest years on record for Antarctic sea ice have all occurred within the last four years, raising concerns about global heating impacts. Dr. Walt Meier from NSIDC and Dr. Ariaan Purich from Monash University highlight the consistent decline in recent winters as evidence of climate change affecting sea ice coverage.

Written locally by qwen2.5:14b on 2026-10-13, using this article's own text rather than the other coverage of the same event (that is the story summary below).

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According to NASA and the National Snow and Ice Data Centre (NSIDC), Antarctic sea ice likely reached its annual maximum extent on September 14, covering an estimated 17.59 million square kilometres—the third-lowest maximum on record. This amount is nearly a million square kilometres, or almost 400,000 square miles, below the long-term average. Dr Walt Meier, a senior scientist at NSIDC at the University of Colorado, noted that the centre delayed declaring this year's peak due to "a lot of potential variability" in sea ice cycles. The four lowest years on record for Antarctic sea ice have all occurred within the past four years, raising concerns about global heating’s impact on marine life and the planet’s climate system. Unlike the Arctic, which is an ocean basin surrounded by land, Antarctica is a large continent surrounded by an expansive ocean, allowing sea ice to expand more during winter but also making it vulnerable to changes driven by warming temperatures.

Written for “Antarctic Sea Ice Minimum” on 2026-10-13, grounded in this article and the 0 other(s) covering the same event.

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📰 Antarctic Sea Ice Minimum

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TOI Science Desk. (2026, October 13). Antarctic sea ice reached its third-lowest winter maximum in satellite records. Times of India. https://timesofindia.indiatimes.com/science/nature/antarctic-sea-ice-reached-its-third-lowest-winter-maximum-in-satellite-records-the-latest-measurement-adds-another-data-point-to-scientists-assessment-of-long-term-changes-in-polar-ice/articleshow/134910454.cms

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242 article(s) here · 1 carrying a prediction

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Dr Walt Meier, a senior scientist at the National Snow and Ice Data Centre at the University of Colorado, said the centre had held off in declaring the maximum because there was a "lot of potential variability" at this stage in the continent's sea ice cycle.

framing: assertive · carried by 1 article(s) · first seen 2026-10-13

🔮 But recent years have seen records broken for low sea ice in both winter and summer, raising concerns that global heating could be driving the losses.

2026-10-13 · Times of India

Antarctic sea ice reached its third-lowest winter maximum in satellite records · assertive framing

, Antarctic sea ice likely reached its annual maximum extent for the year on September 14. asserted

ice → reach → September

On the date, the ice covered an estimated 17.59 million square kilometres, making it the third-lowest maximum on record. asserted

it → cover → record

It has fallen a million square kilometres or almost 400,000 square miles short of the long-term average, as per scientists. asserted

It → fall → scientists

Confirmation of the peak meant the four lowest years on record for the continent’s sea ice, a vital component of the planet’s climate and critical for marine life, had all occurred in the past four years. asserted

years → mean → years

centre → say → cycle

Antarctic ice usually peaks in September, around the end of the Southern Hemisphere's winter and retreats to a minimum in February. asserted

ice → peak → February

Unlike the Arctic, an ocean basin surrounded by land, the Antarctic is a large continent surrounded by an ocean and this provides the sea ice with more room to expand during winter. asserted

this → surround → winter

But this also lets the ice stretch to warmer latitudes, leading to more melting during summer. asserted

ice → let → summer

But recent years have seen records broken for low sea ice in both winter and summer, raising concerns that global heating could be driving the losses. uncertain

heating → see → losses

“The past four winters have had the lowest sea ice maximum on record – that’s a very clear indication of a system that has changed,” said Dr Ariaan Purich, a Southern Ocean expert at Monash University in Melbourne. asserted

Purich → have → Melbourne

The sea ice is no longer covering the same extent of ocean that it used to. asserted

it → cover → that

We are seeing low winter after low winter and that suggests the sea ice is behaving differently because we have warmed our climate. uncertain

we → see → climate

It’s a now problem.” asserted

It → ’ → ?

From 1979 to 2014, the total Antarctic sea ice increased by about 1 per cent per decade. asserted

ice → increase → decade

For three consecutive years, from 2012 to 2014, satellites observed new record highs for winter sea ice extent. asserted

satellites → observe → extent

However, this climb came to an end in 2015, and since 2016, significant decreases in sea ice around Antarctica began to occur in 2016. asserted

decreases → come → 2016

There have since been years with small rebounds, but overall, Antarctic sea ice coverage has largely remained lower than normal. asserted

coverage → remain → rebounds

Both the record low minimum and record low maximum occurred in 2023. asserted

minimum → occur → 2023

Scientists will continue to observe the area each year to find out if the decline is part of a long-term change or a statistical fluctuation. asserted

decline → continue → change

To determine sea ice extent, scientists rely on satellites with passive microwave sensors that measure the microwave energy Earth naturally emits. asserted

Earth → determine → energy

Sea ice emits more of this energy than open water, so it stands out in microwave images. asserted

it → emit → images

Because microwaves pass through clouds, the satellites can observe sea ice regularly, regardless of weather. asserted

satellites → pass → weather

The record began in late 1978 with data collected by NASA’s Nimbus-7, followed by Defence Meteorological Satellite Program (DMSP) satellites starting in 1987, and by NASA’s Aqua satellite between 2002 and 2011. asserted

record → begin → 2002

In 2025, scientists began using observations from the Japan Aerospace Exploration Agency’s GCOM-W satellite. asserted

scientists → begin → satellite

Antarctic sea ice reached its third-lowest winter maximum in satellite records

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