Antarctic

Deep Antarctic Drilling Will Reveal Climate Secrets Trapped In 1.5 Million-year-old Ice

by Richard Gray  An ambitious mission to drill into the Antarctic ice sheet to extract some of the oldest ice on the planet will provide vital clues about a mysterious shift in the behaviour of our planet’s climate. Drilling into the ice...
Related topics: Space

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Antarctic Is Ripe For Invasive Species

Mussels and crabs are two of the creatures most likely to invade Antarctica in the next 10 years, a panel of scientists say. Christopher Intagliata reports. -- Read more on ScientificAmerican.com
Related topics: Antarctica (science)

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Brazil To Open New Antarctic Research Base

Brazil will open a new research base in Antarctica this week, officials said Tuesday, eight years after a fire destroyed its original scientific outpost.
Related topics: Antarctica (science)

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Predicting Non-native Invasions In Antarctica

A new study identifies the non-native species most likely to invade the Antarctic Peninsula region over the next decade. It provides a baseline for all operators in the region to look at mitigation measures.
Related topics: Antarctica (science)

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Where's My Buddy Gone? Penguins Lose Their Friend During Trip To The Unknown

Among the dozens of penguin species around, the Adélie penguin is one of the most widespread, but inhabits only the Antarctic coast.

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Antarctic Waters: Warmer With More Acidity And Less Oxygen

The increased freshwater from melting Antarctic ice sheets plus increased wind has reduced the amount of oxygen in the Southern Ocean and made it more acidic and warmer, according to new research led by University of Arizona geoscientists. The...

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Fossilized Seashells Show Signs Of Ocean Acidification Before Dinosaur-annihilating Asteroid

New evidence gleaned from Antarctic seashells confirms that Earth was already unstable before the asteroid impact that wiped out the dinosaurs.
Related topics: Dinosaurs, Paleontology, Asteroids

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Antarctic Waters: Warmer With More Acidity And Less Oxygen

The increased freshwater from melting Antarctic ice sheets plus increased wind has reduced the amount of oxygen in the Southern Ocean and made it more acidic and warmer, according to new research led by University of Arizona geoscientists.

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Recent Rise In Cfc Emissions Could Delay Ozone Hole Healing By Almost 20 Years

The recently discovered increase in emissions of trichlorofluoromethane (CFC-11) may delay the recovery of the Antarctic ozone hole by over a decade if it continues, suggests a modelling study in Nature Communications. Although uncertainties exist...
Related topics: Ozone, Scientific Discoveries

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Seal Takes Ocean Heat Transport Data To New Depths

From NASA By Esprit Smith, NASA’s Earth Science News Team A tagged elephant seal basks on Kerguelen Island, a French territory in the Antarctic. Elephant seals are tagged as part of a French research program called SO-MEMO (Observing System...
Related topics: NASA, Space

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'lost' Iron Meteorites May Lurk Beneath Antarctic Ice. Scientists On Quest To Find Them.

Scientists are scouring the remote Antarctic ice cap for rare meteorites chock-full of iron and holding secrets to the history of our solar system going back some 4.5 billion years.
Related topics: Meteorites, Space

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Barrels Of Ancient Antarctic Air Aim To Track History Of Rare Gas

An Antarctic field campaign last winter led by the US and Australia has successfully extracted some of the largest samples of air dating from the 1870s until today. Researchers will use the samples to look for changes in the molecules that scrub the...

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High-precision Map Of Antarctic Ice Sheet Bed Topography

Glaciologists have unveiled the most accurate portrait yet of the contours of the land beneath Antarctica's ice sheet -- and, by doing so, have helped identify which regions of the continent are going to be most vulnerable to the impact of future...
Related topics: Antarctica (science)

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Earth Was Stressed Before Dinosaur Extinction

New evidence gleaned from Antarctic seashells confirms that Earth was already unstable before the asteroid impact that wiped out the dinosaurs. The study, led by researchers at Northwestern University, is the first to measure the calcium isotope...
Related topics: Dinosaurs, Paleontology, Asteroids

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Nasa's Operation Icebridge Completes 11 Years Of Polar Surveys

For eleven years from 2009 through 2019, the planes of NASA's Operation IceBridge flew above the Arctic, Antarctic and Alaska, gathering data on the height, depth, thickness, flow and change of sea ice, glaciers and ice sheets.Designed to collect...
Related topics: NASA, Space, Arctic

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Chile Combs Antarctic For Missing Plane With 38 Aboard

Search crews are combing the Antarctic for a Chilean military transport plane carrying 38 people that vanished en route to a base on the frozen continent
Related topics: Military

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The Antarctic: Data About The Structure Of The Icy Continent

Satellite data from the European Space Agency (ESA) has now been used as the basis for new insights on the deep structure of the continent Antarctica.
Related topics: Satellites, Space, European Space Agency, Antarctica (science)

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Microplastics A Million Times More Abundant In The Ocean Than Previously Thought

Nothing seems safe from plastic contamination. It is pulled from the nostrils of sea turtles, found in Antarctic waters and buried in the fossil record. But a new study by researchers from Scripps Institution of Oceanography at the University of...
Related topics: Fossils, Paleontology, Scripps Institution Of Oceanography

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Research Reveals Past Rapid Antarctic Ice Loss Due To Ocean Warming

New research from the University of Otago has found the sensitive West Antarctic Ice Sheet collapsed during a warming period just over a million years ago when atmospheric carbon dioxide levels were lower than today.
Related topics: Carbon Dioxide

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Brain Volume, Cognition Worse After Antarctic Expedition

]]>(MedPage Today) -- Fourteen months on an Antarctic research expedition -- with almost complete darkness during winter, temperatures as low as -58 °F, and extremely limited social interactions -- led to brain changes in healthy young...

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