Arctic & Antarctic

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South Pole registers coldest winter on record

A weather station at the Amundsen-Scott South Pole Station registered record cold winter temperatures this season (April - September), averaging at -61.1 °C (-77.9 °F) and breaking the previous record set in 1976 at -60.6 °C (-77 °F). Weather records...

October 05, 2021

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Scientists identify new atmospheric circulation over the Arctic

A team of scientists from Japan, South Korea, and the USA, has identified a new pattern of atmospheric circulation around the Arctic that could drive co-occurrences of heatwaves and large-scale wildfires over the region, particularly in Siberia and subpolar North...

June 04, 2021

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Antarctica hit by 30 000 earthquakes in 3 months

More than 30 000 earthquakes have been registered in the Bransfield Strait, an ocean channel between the South Shetland Islands and the Antarctic Peninsula, since the end of August 2020, according to the University of Chile. The strait is now expanding 15 cm (6...

December 18, 2020

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New equatorial wind patterns observed in Antarctica, revealing new connections in global circulation

A team of researchers found evidence of a new equatorial wind pattern at Antarctica, unveiling a crucial connection between winds at the Earth's equator and atmospheric waves about 10 000 km (6 000 miles) away at the South Pole. The findings highlight how winds...

August 29, 2020

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Arctic ozone levels hit record low in March

An analysis of satellite observations shows that ozone levels over the Arctic hit a record low for the month of March, NASA researchers reported on April 16, 2020. Ozone levels reached their lowest point on March 12 at 205 Dobson units. The depletion was caused by...

April 17, 2020

ozone hole april 3 2020

Rare ozone hole opens over the Arctic, likely the largest in history

A huge ozone hole has opened this year over the Arctic. While ozone holes normally form in the Antarctic zone every year because winter temperatures drop to extremely low values, allowing high-altitude clouds to develop-- the Arctic has more varying temperatures and...

April 03, 2020

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Rare, unusually large ozone hole develops over the Arctic-Canadian region

A huge area of sustained ozone depletion has developed over the Arctic-Canadian region -- too late for the winter season, too early for spring, and unusually strong for the northern hemisphere. The ozone layer is a natural layer of protective gas in the upper...

March 18, 2020

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Arctic sea ice sees drastic recovery, reaches largest early February ice extent in 11 years

The arctic sea ice has reached its largest early February ice extent in 11 years, surpassing the average size from 2001 to 2010. The recovery is a result of a strong polar vortex. Sea ice analysis indicated that during this rather mild winter in the middle...

February 15, 2020

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Sudden Stratospheric Warming (SSW) event above South Pole to go down as the strongest on record

Very rare Sudden Stratospheric Warming (SSW) event continues unfolding above the South Pole. This SSW could go down in history as the strongest warming event on record, NIWA said, adding there is increased risk for southerlies in New Zealand into October. SSW...

September 10, 2019

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Sudden Stratospheric Warming (SSW) event in progress over the South Pole

Sudden Stratospheric Warming (SSW) event is in progress over the South Pole, with temperatures rising more than 40 °C (72 °F) above normal. "These events are significant, as the warming and the disruption of the polar vortex eventually makes its way...

September 03, 2019

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Rare lightning strikes detected near the North Pole

Rare lightning strikes were detected within 480 km (300 miles) of the North Pole on Saturday, August 10, 2019. A number of lightning strikes were recorded between 16:00 and 18:00 AKDT on August 10 (02:00 - 04:00 UTC, August 11) within 480 km (300 miles) of the North...

August 15, 2019

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Active volcano heat source discovered under fastest-moving and melting glacier in Antarctica

Scientists have discovered active volcano heat source under Antartica's fastest-moving and melting glacier - Pine Island Glacier. The surprising find, published recently in Nature Communications, offers insight into the movement and melting of the Pine Island...

June 29, 2018

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Avalanches, bad weather isolates Arctic community, Norway

The municipality of Berlevåg, in Norway's Lapland (Finnmark) has been experiencing problems of food deliveries and transport for six consecutive days. An avalanche and heavy snowing blocked the county road leading to the village on Friday, March 23, 2018....

March 28, 2018

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New Antarctic heat map reveals sub-ice hotspots

An international team of scientists, led by British Antarctic Survey (BAS), has produced a new map showing how much heat from the Earth’s interior is reaching the base of the Antarctic Ice Sheet. The map was published Monday, November 13, 2017, in the journal...

November 13, 2017

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Mantle plume, a geothermal heat source under West Antarctic ice sheet

A new study adds to evidence that a geothermal heat source called a mantle plume lies deep below Antarctica's Marie Byrd Land, explaining some of the melting that forms lakes and rivers under the ice sheet. Although the heat source isn't a new or increasing...

November 12, 2017

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Scientists uncover largest volcanic region on Earth under West Antarctica

A remote survey suggested by third-year university student discovered 91 volcanoes in a massive region known as the West Antarctic Rift System. The volcanoes range in height from 100 m to 3 850 m (328 to 12 631 feet). A study conceived by a third-year student at the...

August 14, 2017

larsen c ice shelf breaks off july 2017

Huge Antarctic iceberg finally breaks free

After months of ‘hanging by a thread’, a vast iceberg the size of Norfolk has finally broken off Antarctica’s Larsen C Ice Shelf. Around 30 m (98 feet) of this 190 m (623 feet) thick block of ice sits above the sea surface. Scientists now have...

July 12, 2017