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The lows and lows of Antarctic sea ice

Data from the US National Snow and Ice Data Center (NSIDC) have revealed another summer of exceptionally low sea-ice extent around Antarctica......»»

Category: topSource:  physorgMar 5th, 2024

Study highlights need to keep an eye on the ozone hole

Despite public perception, the Antarctic ozone hole has been remarkably massive and long-lived over the past four years, University of Otago researchers believe chlorofluorocarbons (CFCs) aren't the only things to blame......»»

Category: topSource:  physorgRelated NewsNov 21st, 2023

Deep dive on sea level rise: New modeling gives better predictions on Antarctic ice sheet melt

Using historical records from around Australia, an international team of researchers have put forward the most accurate prediction to date of past Antarctic ice sheet melt, providing a more realistic forecast of future sea level rise......»»

Category: topSource:  physorgRelated NewsNov 17th, 2023

Deep-sea coral evidence found for enhanced subglacial discharge from Antarctica during meltwater pulse 1A

Subglacial discharge from the Antarctic Ice Sheet (AIS) likely played a crucial role in the loss of ice sheet and the subsequent rise in sea level during the last deglaciation. However, no direct proxy is currently available to document subglacial di.....»»

Category: topSource:  physorgRelated NewsNov 16th, 2023

Three thousand years" worth of carbon monoxide records show positive impact of global intervention in the 1980s

An international team of scientists has reconstructed a historic record of the atmospheric trace gas carbon monoxide by measuring air in polar ice and air collected at an Antarctic research station......»»

Category: topSource:  physorgRelated NewsNov 16th, 2023

Climate engineering could slow Antarctic ice loss, study says

Scattering sunlight-reflecting particles in the atmosphere could slow rapid melting in West Antarctica and reduce the risk of catastrophic sea-level rise, according to a study led by Indiana University researchers......»»

Category: topSource:  physorgRelated NewsNov 15th, 2023

M3/Pro MacBook Pros start from $1,449, 24-inch M3 iMac lows at $1,199, ZAGG 25% off sale, more

Apple’s new M3 Macs are finally seeing some savings as the early Black Friday deals pour in. Headlining the offers, the new M3/Pro MacBook Pros are now starting from $1,449 with $150 or more in savings attached. You can also bring home the shiny ne.....»»

Category: topSource:  theglobeandmailRelated NewsNov 14th, 2023

Researchers: Collapse of West Antarctic ice sheet is still preventable—if we act fast to keep future warming in check

Projecting when and how fast the West Antarctic Ice Sheet will lose mass due to current and future global ocean warming—and the likely impact on sea level rise and coastal communities—is a priority for climate science......»»

Category: topSource:  physorgRelated NewsNov 14th, 2023

Apple Watch Series 9 early Black Friday pricing from $349, Magic Keyboard with Touch ID $120, more

Early Black Friday pricing has gone live on the Apple Watch Series 9. New all-time lows are here on both 41 and 45mm models from $349, saving you $50 off a collection of different styles. In quite the fitting companion sale, official Apple Watch Mila.....»»

Category: topSource:  informationweekRelated NewsNov 9th, 2023

New AI system can map giant icebergs from satellite images 10,000 times faster than humans

Scientists have trained an artificial intelligence (AI) system to accurately map—in one-hundredth of a second—the surface area and outline of giant icebergs captured on satellite images. The paper, titled "Mapping the extent of giant Antarctic ic.....»»

Category: topSource:  physorgRelated NewsNov 8th, 2023

New study sheds light on Adélie penguins" reliance on declining sea ice during molt

A study published in the Proceedings of the National Academy of Sciences underscores the pivotal role that seasonal Antarctic sea ice plays in the annual molting periods of Adélie penguins......»»

Category: topSource:  physorgRelated NewsNov 6th, 2023

2023 ozone hole ranks 16th largest, NASA and NOAA researchers find

The 2023 Antarctic ozone hole reached its maximum size on Sept. 21, according to annual satellite and balloon-based measurements made by NASA and NOAA. At 10 million square miles, or 26 million square kilometers, the hole ranked as the 12th largest s.....»»

Category: topSource:  physorgRelated NewsNov 4th, 2023

Bird Flu Reaches the Antarctic for the First Time

As the first known cases of H5N1 are detected in the region, scientists fear for the isolated penguin and seal populations that have never been exposed......»»

Category: gadgetSource:  wiredRelated NewsOct 28th, 2023

Meltwater flowing beneath Antarctic glaciers may be accelerating their retreat

A new Antarctic ice sheet modeling study from scientists at UC San Diego's Scripps Institution of Oceanography suggests that meltwater flowing out to sea from beneath Antarctic glaciers is making them lose ice faster......»»

Category: topSource:  physorgRelated NewsOct 27th, 2023

Underwater robot finds new circulation pattern in Antarctic ice shelf

More than merely cracks in the ice, crevasses play an important role in circulating seawater beneath Antarctic ice shelves, potentially influencing their stability, finds Cornell University-led research based on a first-of-its-kind exploration by an.....»»

Category: topSource:  physorgRelated NewsOct 27th, 2023

"Frozen in time" landscape discovered under Antarctic ice

Scientists revealed Tuesday that they had discovered a vast, hidden landscape of hills and valleys carved by ancient rivers that has been "frozen in time" under the Antarctic ice for millions of years......»»

Category: topSource:  physorgRelated NewsOct 24th, 2023

First confirmed cases of avian influenza in the Antarctic region

Highly pathogenic avian influenza (HPAI) has been confirmed in brown skua populations on Bird Island, South Georgia—the first known cases in the Antarctic region......»»

Category: topSource:  physorgRelated NewsOct 23rd, 2023

Scientists count huge melts in many protective Antarctic ice shelves. Trillions of tons of ice lost.

Four dozen Antarctic ice shelves have shrunk by at least 30% since 1997 and 28 of those have lost more than half of their ice in that time, reports a new study that surveyed these crucial "gatekeepers'' between the frozen continent's massive glaciers.....»»

Category: topSource:  informationweekRelated NewsOct 15th, 2023

New lows take $50 off Apple Watch Ultra 2, drop USB-C AirPods Pro 2 to $189, more

Today we’re tracking new all-time lows on three recent releases from Apple. The just-released Apple Watch Ultra 2 is landing at its lowest price thanks to a $50 discount, which is joined by the new USB-C AirPods Pro 2 at $189. Not to mention, Beats.....»»

Category: gadgetSource:  9to5macRelated NewsOct 12th, 2023

WWF urges end to deadlock on new Antarctic reserves

Members of a multinational group on Antarctic conservation must end a years-long deadlock and agree on new marine reserves in the region as sea-ice shrinks to record lows, the WWF urged Wednesday......»»

Category: topSource:  pcmagRelated NewsOct 12th, 2023

Bizarre year for sea ice notches another record

Antarctica finishes well below any other year in the satellite era. Enlarge / 2023 has been a remarkable year for Antarctic sea ice. (credit: National Snow and Ice Data Center) Sometimes, data points deemed to be “outl.....»»

Category: topSource:  arstechnicaRelated NewsOct 5th, 2023