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☆ Meteorites may be lost to Antarctic ice as climate warms, study says
▼ + stars: | 2024-04-10 | by ( Katie Hunt | ) edition.cnn.com time to read: +9 min

Ice sampling occurs on a blue ice area during the 2022 Chilean Antarctic Institute field mission. “As the climate continues to warm, Antarctic rocks are sinking into the ice at an increasing rate. Meteorites are particularly plentiful in blue ice fields. Steven Goderis/Vrije Universiteit BrusselResearchers have identified areas of meteorite-rich blue ice mostly by luck. “The main worry is the logistical aspect of searching for Antarctica meteorites, which is already difficult today due to the remoteness of Antarctica.

Persons: Maria Valdes, ”, Valdes, Robert A, “, José, wasn’t, Balchenfjella, Steven Goderis, Veronica Tollenaar, ” Valdes, Tollenaar, ” Tollenaar, Harry Zekollari, Katherine Joy, Matthias van Ginneken, van Ginneken, Kevin Righter, Righter Organizations: CNN, Field, University of Chicago, Pritzker Center, Meteoritics, Polar Studies, Antarctic Institute, University of Santiago, Vrije Universiteit Brussel, Université Libre de Bruxelles, University of Manchester, University of Kent’s, Astrophysics, NASA Johnson Space Center Locations: Antarctica, Chile, Vrije, Université, Belgium, Houston

☆ A new company is shipping Arctic ice from Greenland to chill posh drinks in Dubai
▼ + stars: | 2024-03-01 | by ( Laura Paddison | ) edition.cnn.com time to read: +5 min

The startup company, Arctic Ice, shipped its first container of around 22 tons of Greenland ice to Dubai this year for sale to high-end bars and restaurants. Founded in 2022 by two Greenlanders, Arctic Ice has an interesting — and controversial — business model. Arctic Ice claims it’s offering a novel way to harness a natural resource, carving out new economic opportunities and raising awareness of the Arctic. Various attempts have been made over the past few decades to bring back natural ice commercially, but with little success. But perhaps inevitably for a business model that involves shipping a diminishing natural resource halfway across the world, Arctic Ice has attracted controversy.

Persons: ”, Malik V, Rasmussen, ” Rasmussen, “, Jennifer Francis, Francis, It’s, Jason Box Organizations: CNN, glitzy, Climate Research, Geological Survey Locations: glitzy Dubai, Dubai, Nuuk, Greenland, Europe, people’s freezers, Norway, Denmark

☆ A hidden feedback loop under Antarctica’s glaciers could accelerate sea level rise, scientists find
▼ + stars: | 2023-10-27 | by ( Rachel Ramirez | ) edition.cnn.com time to read: +4 min

CNN —Glaciers in East Antarctica could lose ice faster in the future than previously thought, scientists reported Friday, in an alarming feedback loop where glacier meltwater is triggering even more ice loss and sea level rise as the planet warms. Together, these and other recent studies paint a dire picture of a melting southern continent that poses extreme risk of life-altering sea level rise around the world. Friday’s study factored that feedback into simulations to see how much it could accelerate Antarctic melting and sea level rise. Measuring this phenomenon and accounting for it in climate models is necessary “to get a realistic picture of global sea level rise,” Greenbaum said. “Given this evidence, subglacial melt and discharge is a process that can no longer be ignored in future projections of Antarctica’s contribution to sea level rise,” De Rydt told CNN.

Persons: CNN —, it’s, ”, Jamin Greenbaum, Denman, Scott, Greenbaum, ” Greenbaum, Tyler Pelle, ” Pelle, Pelle, we’re, ” Jan De Rydt, ” De Rydt, “ Organizations: CNN, University of California San Diego’s Scripps, of Oceanography, Scripps, Northumbria University Locations: East Antarctica, Antarctica

☆ Ancient landscape formed by rivers revealed deep under Antarctic ice
▼ + stars: | 2023-10-24 | by ( Will Dunham | ) www.reuters.com time to read: +4 min

Researchers said on Tuesday they have detected buried under the continent's ice sheet a vast ancient landscape, replete with valleys and ridges, apparently shaped by rivers before being engulfed by glaciation long ago. Ancient palm tree pollen has been discovered from Antarctica, not far around the coast from our study site," Jamieson added. Some previous studies similarly have revealed ancient landscapes beneath Antarctica's ice including mountains and highlands, though the landscape discovered in the new study was the first of its type. Right before 34 million years ago, Antarctica's landscape and flora likely resembled today's cold temperate rainforests of Tasmania, New Zealand and South America's Patagonia region, Ross added. When that ice growth occurred, the conditions between the base of the ice and the landscape changed to become very cold - and in this way it was no longer able to erode our landscape.

Persons: Stewart Jamieson, Antarctica's, Jamieson, Neil Ross, Ross, Will Dunham, Daniel Wallis Organizations: Durham University, Handout, REUTERS, Rights, Antarctica, Nature Communications, Newcastle University, Thomson Locations: Belgium, Wilkes Land, East Antarctica, Antarctica, East Antarctica's Wilkes Land, ., Maryland, England, Patagonia, Greenland, Tasmania , New Zealand, South, Africa, South America, Australia

☆ Long-lost Greenland ice core suggests potential for disastrous sea level rise
▼ + stars: | 2023-07-20 | by ( Laura Paddison | ) edition.cnn.com time to read: +5 min

Instead, moderate, natural warming led to large-scale melting and sea level rise of more than 1.4 meters (4.6 feet), according to the report published Thursday in the journal Science. This would have significant impacts on sea level rise. The potential implications for sea level rise are enormous, Tammy Rittenour, a professor from Utah State University and study co-author said in a statement. “We are looking at meters of sea level rise, probably tens of meters. “The current greenhouse gas emission-driven warming may reduce the Greenland ice sheet faster than forecast,” he told CNN.

Persons: ”, Paul Bierman, Bierman, “ It’s, “, Tammy Rittenour, Andrew Shepherd, Jason Box, “ we’re Organizations: CNN, University of Vermont, Utah State University, Northumbria University, Geological Survey Locations: Greenland, Denmark, Copenhagen, New York City, Boston, Miami, Amsterdam, India, Africa, glaciology

CNN —China is making “significant progress” building the country’s fifth research facility in Antarctica after a several years-long lull in construction, according to a report by the Center for Strategic and International Studies (CSIS). The site – a research station China has hailed as a means to expand its scientific investigation in the Antarctic – could also be used to enhance the country’s intelligence collection, according to CSIS. In February 2020, a team of US inspectors visited the station, where they were hosted by station leader Wang Zhechao of the Polar Research Institute of China. China has established four scientific research bases in Antarctica since 1984, according to the Chinese Academy of Sciences. Under the 1959 treaty Antarctic Treaty, to which China is party, activities on the continent are restricted to “peaceful purposes.”Military personnel are allowed to conduct scientific research, but may not set up bases, test weapons of carry out maneuvers.

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