Antarctica (science)

Switching On The Atlantic Heat Pump

34 million years ago, the warm greenhouse climate of the dinosaur age ended, and the colder icehouse climate of today commenced. Antarctica glaciated first, and geological data imply that the Atlantic meridional overturning circulation, the global...
Related topics: Dinosaurs, Paleontology

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Switching On The Atlantic Ocean Heat Pump

34 million years ago the warm 'greenhouse climate' of the dinosaur age ended and the colder 'icehouse climate' of today commenced. Antarctica glaciated first and geological data imply that the Atlantic meridional overturning circulation, the global...
Related topics: Dinosaurs, Paleontology

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Scientists Discover Star Dust In Antarctic Snow

A team of scientists hauled 500 kilograms of fresh snow back from Antarctica, melted it, and sifted through the particles that remained. Their analysis yielded a surprise: The snow held significant amounts of a form of iron that isn't naturally...
Related topics: Scientific Discoveries, Antarctic

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New Research Shows That Antarctica’s Largest Floating Ice Shelf Is Highly Sensitive To...

By Dan Lowry | – Scientists have long been concerned about the potential collapse of the West Antarctic Ice Sheet and its contribution to global sea level rise. Much of West Antarctica’s ice lies below sea level, and warming ocean...
Related topics: Global Warming, Antarctic

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The Reason Antarctica Is Melting: Shifting Winds, Driven By Global Warming

A new study helps solve the puzzle of why the continent’s western glaciers are melting so fast -- Read more on ScientificAmerican.com
Related topics: Global Warming

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Fresh Interstellar Dust Discovered In The Snows Of Antarctica

By examining Antarctic snow, researchers have for the first time discovered interstellar dust that recently fell to Earth, a new study finds.
Related topics: Scientific Discoveries, Antarctic

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Space Dust From Ancient Supernova Found Hiding In Antarctica

Iron traces in snowfall originated in a stellar explosion millions of years ago -- Read more on ScientificAmerican.com
Related topics: Supernova

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Scientists Link Climate Change To Melting In West Antarctica

A new study has for the first time presented solid evidence that human-caused global warming is linked to melting of the West Antarctic Ice Sheet. Scientists already knew that periodically changing winds in the region have caused an increase in warm...
Related topics: Global Warming, Antarctic

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Seafaring Robot Crashes Into Iceberg, Still Finishes Scientific Trip Around Antarctica

13,670 nautical miles. 50-foot waves. One big collision.  Over the weekend a Saildrone — a 23-foot long uncrewed marine robot — withstood the tempestuous seas around Antarctica to complete the first-ever circumnavigation of the...
Related topics: Robots, Icebergs

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Saildrone Is First To Circumnavigate Antarctica, In Search For Carbon Dioxide

It was an audacious idea: To send an unmanned saildrone on a 13,670-nautical-mile journey around Antarctica alone, at the mercy of the most hostile seas on the planet. In winter.
Related topics: Carbon Dioxide, Space

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A Submarine Goes Under A Failing Glacier To Gauge Rising Seas

Scientists believe Antarctica's massive Thwaites Glacier is teetering on the brink of collapse, though just how fast that could happen remains an open question.

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Floods Are Most Likely To Destroy Your Home In These Cities

As the coldest areas in and near the Arctic circle and Antarctica melt, sea levels continue to rise. Scientists have repeatedly warned that this activity will cause more frequent, and more damaging...
Related topics: Arctic

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Satellites Go With The Flow In This Amazingly Accurate Map Of Antarctica's Ice

Glaciologists mapped out ice velocity in Antarctica using data from six satellites.
Related topics: Satellites, Space

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Extraterrestrial Material Discovered In Radioactive Snow From Antarctica

Scientists from Germany have grabbed half a tonne of snow from a polar research station, located in an uncontaminated area of the Antarctic and melted it in Europe to extract single atoms of an isotope of iron that is rarely found on Earth and might...
Related topics: Scientific Discoveries, Antarctic

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It’s 88 Degrees Below Zero Here Right Now

A very few parts of the world have temperatures that have been well below zero since they were first visited in the early 20th century. Among the coldest regularly is Ago-4 in Antarctica.

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Waiting For An Undersea Robot In Antarctica To Call Home

"Call! Just call!" I think loudly in my head. "Did something happen? Are you okay?"
Related topics: Robots

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Antarctica Warmer 1,000 Years Ago… Now, *that’s* An Inconvenient Truth!

Guest re-blogging by David Middleton From No Tricks Zone: The paper: Lüning, S., M. Gałka, F. Vahrenholt (2019): The Medieval Climate Anomaly in Antarctica. Palaeogeogr., Palaeoclimatol., Palaeoecol., doi:10.1016/j.palaeo.2019.109251

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Running The Numbers On An Insane Scheme To Save Antarctic Ice

Enlarge / Antarctica's Pine Island Glacier sheds some icebergs. Could we... sort of... put them back? (credit: NASA Earth Observatory) Imagine, if you will, the engineers of the king’s court after Humpty Dumpty’s disastrous fall. As panicked...
Related topics: Antarctic, Icebergs, NASA, Space

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Antarctica Is Melting So Fast That Scientists Are Proposing Shooting Artificial Snow Out Of Cannons...

Two glaciers in Antarctica are melting at unprecedented rates. If they collapse, global sea levels could rise by more than 10 feet (3.3 meters), swamping coastal cities like New York, Shanghai, and Calcutta. In a new study, scientists simulated the...

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Snow Cannons Can Stabilize Melting Antarctic Ice Shelves, Physicists Say

West Antarctica is an ominous place.  In this exceptionally remote region, ice is breaking off into the sea faster than it's naturally replenished by snowfall. Massive icebergs — recently one five times the size of Manhattan — have...
Related topics: Antarctic, Physics, Icebergs

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