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Keyword: antarctica

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  • Endurance: Search for Shackleton's lost ship begins

    02/10/2019 7:03:49 PM PST · by DUMBGRUNT · 46 replies
    BBC ^ | 10 Feb 2019 | Jonathan Amos
    The team broke through thick pack ice on Sunday to reach the vessel's last known position in the Weddell Sea. Robotic submersibles will now spend the next few days scouring the ocean floor for the maritime icon. Shackleton and his crew had to abandon Endurance in 1915 when it was crushed by sea ice and sank in 3,000m of water. Shackleton's skipper, Frank Worsely, was a very skilled navigator and used a sextant and chronometer to calculate the precise co-ordinates of the Endurance sinking - 68°39'30.0" South and 52°26'30.0" West.
  • Scientists Have Reduced the Forecast of Sea Level Rise Seven Times Due to Melting of the Antarctic

    02/10/2019 3:07:18 PM PST · by Textide · 34 replies
    The Maritime Herald ^ | February 8, 2019 | SVILEN PETROV
    The destruction of the Antarctic ice sheet may not lead to such a catastrophic rise in the level of the oceans, as previously thought. In a new study, the authors calculated that instead of growing by a meter or more by 2100, a growth of 14-15 cm is likely, writes N + 1. At the same time, the melting of the ice of Greenland and Antarctica is not fully taken into account in modern climate models, as it will lead to even more destabilization of the regional climate. Both studies on this are published in the journal Nature. The melting...
  • PENGUINS: GONE TODAY--HERE TOMORROW

    02/07/2019 8:46:24 AM PST · by Sean_Anthony · 10 replies
    Canada Free Press ^ | 02/07/19 | Dr.John Happs
    It would appear then that slightly increasing concentrations of atmospheric carbon dioxide and temperature stasis over 20 years have done absolutely nothing to threaten the Penguins In 2008, historian Meredith Hooper published her book: “The Ferocious Summer. Adélie Penguins and the warming of Antarctica.” (Greystone Books, Vancouver, British Columbia.) We are told that “This book is a fascinating and alarming report from the frontlines of global warming” and not surprisingly we find the following message on the book’s front cover from serial alarmist Dr. David Suzuki: “Like canaries in a coal mine, penguins present an undeniable and urgent warning of...
  • "Disturbing" discovery: Giant hole found under Antarctica glacier

    01/31/2019 3:59:17 PM PST · by EdnaMode · 143 replies
    CBS News ^ | January 31, 2019 | Sarah Lynch Baldwin
    Researchers say a massive cavity the size of two-thirds of Manhattan was found under a glacier in Antarctica. The pocket is a sign of "rapid decay" and just one of "several disturbing discoveries" made recently regarding the glacier, NASA's Jet Propulsion Laboratory said in a news release Wednesday. "[The size of] a cavity under a glacier plays an important role in melting," said Pietro Milillo of the Jet Propulsion Laboratory. "As more heat and water get under the glacier, it melts faster." The growing cavity sits in West Antarctica at the bottom of Thwaites Glacier, which is about as big...
  • Scientists Drill Deepest Hole Ever in Antarctica

    01/26/2019 1:48:08 AM PST · by BenLurkin · 23 replies
    livescience.com ^ | | January 24, 2019 08:35am ET | Yasemin Saplakoglu
    Scientists have been planning the project, called BEAMISH (Bed Access, Monitoring and Ice Sheet History), for the past 20 years. On Jan. 8, after 63 hours of continuous drilling using a hot-water drill (a large tool that melts the ice), they broke through the base of the Rutford Ice Stream in West Antarctica. The team reached a depth of 7,060 feet (2,152 meters) and threaded instruments through the hole to record water pressure and ice temperature, and to measure how much the ice has deformed. The team reached a depth of 7,060 feet (2,152 meters) and threaded instruments through the...
  • California set to seize 1,100 miles of coastline

    01/16/2019 9:10:46 AM PST · by Olog-hai · 68 replies
    American Thinker ^ | January 16, 2019 | Chriss Street
    The California Coastal Commission is set to empower local government to take thousands of properties through eminent domain along 1,100 miles of coastline to prepare for sea level rise. Despite California being battered by 4-8 inches of torrential rain and flooding from an El Niño weather cycle, E&E News reported that the State of California in late January will authorize eminent domain authority for local jurisdictions to implement a “managed retreat” policy that will allow taking and demolishing coastal homes and businesses. […] CCC retreat guidance is expected to also entail dismantling and relocating of dozens of wastewater treatment and...
  • Scientists find...carcasses...in mysterious Antarctic lake...buried under 3,500 feet of ice

    01/18/2019 9:23:31 PM PST · by BenLurkin · 56 replies
    Daily Mail UK ^ | 18 January 2019 | Mark Prigg
    Full Title: "Scientists find preserved animal carcasses in mysterious Antarctic lake 'twice the size of Manhattan' buried under 3,500 feet of ice" Scientists in Antarctica have found preserved carcasses of tiny animals in a mysterious lake buried under more than 3,500 feet of ice. Mercer Subglacial Lake is a hydraulically active lake that lies more 1000m beneath the Whillans Ice Plain, a fast moving section of the West Antarctic Ice Sheet. Researchers managed to drill into the lake for the first time earlier this year, and have now revealed they found signs of life. According to Nature, researchers found the...
  • Why Antarctica's sea ice cover is so low (and no, it's not just about climate change)

    01/17/2019 12:42:29 PM PST · by ETL · 22 replies
    Phys.org ^ | January 17, 2019 | Julie Arblaster, Gerald A Meehl, Guomin Wang, The Conversation
    Sea ice cover in Antarctica shrank rapidly to a record low in late 2016 and has remained well below average. But what's behind this dramatic melting and low ice cover since? Our two articles published earlier this month suggest that a combination of natural variability in the atmosphere and ocean were to blame, though human-induced climate change may also play a role. What happened to Antarctic sea ice in 2016?Antarctic sea ice is frozen seawater, usually less than a few metres thick. It differs from ice shelves, which are formed by glaciers, float in the sea, and are up to...
  • Ice loss from Antarctica has sextupled since the 1970s, new research finds

    01/14/2019 5:11:28 PM PST · by yesthatjallen · 60 replies
    WP ^ | 1 14 2019 | Chris Mooney and Brady Dennis
    Antarctic glaciers have been melting at an accelerating pace over the past four decades thanks to an influx of warm ocean water — a startling new finding that researchers say could mean sea levels are poised to rise more quickly than predicted in coming decades. The Antarctic lost 40 billion tons of melting ice to the ocean each year from 1979 to 1989. That figure rose to 252 billion tons lost per year beginning in 2009, according to a study published Monday in the Proceedings of the National Academy of Sciences. That means the region is losing six times as...
  • Scientists...drill into mysterious Antarctic lake... under 3,500 feet of ice..to find if life...

    12/31/2018 10:52:11 PM PST · by BenLurkin · 21 replies
    Daily Mail UK ^ | 31 December 2018 | Mark Prigg
    Mercer Subglacial Lake is a hydraulically active lake that lies more 1000m beneath the Whillans Ice Plain, a fast moving section of the West Antarctic Ice Sheet. The pool of water, known as Subglacial Lake Mercer, measures nearly 62 square miles, was discovered more than a decade ago through satellite images but has never been explored. It is one of 400 lakes beneath the Antarctic ice - and experts say any life there could raise hopes of finding similar organisms deep inside Mars or on the ice-covered moons of Jupiter and Saturn. The Subglacial Antarctic Lakes Scientific Access (SALSA) team...
  • An American explorer just became the first person to cross Antarctica alone and unaided,[tr]

    12/26/2018 9:20:56 PM PST · by simpson96 · 43 replies
    Business Insider ^ | 12/26/2018 | Hillary Brueck
    American adventurer Colin O'Brady just made it across Antarctica alive, alone, and way ahead of schedule. That feat makes O'Brady the first person to ever cross the southern continent on a solo, unsupported mission without getting resupplied or using a kite. "This is something that no one in history has ever accomplished, and people have been trying for 100 years," O'Brady told Business Insider before he started the record-breaking trek. According to his live-tracking map, O'Brady reached his finish line on the Ross Ice Shelf on December 26. He quickly followed up with photo proof, confirming he'd skied 932 miles...
  • Tourists may be making Antarctica’s penguins sick

    12/13/2018 1:32:20 PM PST · by ETL · 18 replies
    ScienceMag.org ^ | Dec 13, 2018 | Maria Bolevich
    You can give your cat the flu. You can also pass pneumonia to a chimpanzee or tuberculosis to a bird. This kind of human-to-animal disease transmission, known as reverse zoonosis, has been seen on every continent except one: Antarctica. Now, human-linked pathogens in bird poop reveal, for the first time, that even animals on this isolated, ice-bound landmass can pick up a bug from tourists or visiting scientists. This newly identified infection route could have devastating consequences for Antarctic bird colonies, including population collapse and even extinction. “[We’re] obsessed about the potential for novel diseases to jump from wildlife to...
  • Emperor penguin population to slide due Antarctic climate change

    06/29/2014 4:26:24 PM PDT · by NormsRevenge · 43 replies
    Yahoo ^ | 6/29/14 | Alister Doyle - Reuters
    OSLO, (Reuters) - Global warming will cut Antarctica's 600,000-strong emperor penguin population by at least a fifth by 2100 as the sea ice on which the birds breed becomes less secure, a study said on Sunday. The report urged governments to list the birds as endangered, even though populations in 45 known colonies were likely to rise slightly by 2050 before declining. Such a listing could impose restrictions on tourism and fishing companies. The study is the first to project the long-term outlook for Antarctica's largest penguins, which can grow 1.2 meters (four ft) tall, seeking to fill a gap...
  • A Frozen Graveyard: The Sad Tales of Antarctica's Deaths

    12/14/2018 10:24:12 AM PST · by SunkenCiv · 24 replies
    BBC ^ | September 14, 2018 | Martha Henriques
    1800s: Mystery of the Chilean bonesAt Livingston Island, among the South Shetlands off the Antarctic Peninsula, a human skull and femur have been lying near the shore for 175 years. They are the oldest human remains ever found in Antarctica. The bones were discovered on the beach in the 1980s. Chilean researchers found that they belonged to a woman who died when she was about 21 years old. She was an indigenous person from southern Chile, 1,000km (620 miles) away. Analysis of the bones suggested that she died between 1819 and 1825. The earlier end of that range would...
  • 2 technicians killed at Antarctica science station

    12/13/2018 9:45:33 AM PST · by SMGFan · 50 replies
    APNews ^ | December 12, 2018
    <p>The National Science Foundation says two technicians working on a fire-suppression system at an Antarctica scientific station were found unconscious and died.</p> <p>The foundation said Wednesday the two had been working in a building at McMurdo Station, which is on Ross Island. It says they were found on the floor by a helicopter pilot who had landed after spotting what appeared to be smoke from the building.</p>
  • How this supercolony of 1.5 million penguins stayed hidden for nearly 3,000 years

    12/13/2018 8:10:23 AM PST · by ETL · 36 replies
    LiveScience, via FoxNews.com/Science ^ | Dec 13, 2018 | Yasemin Saplakoglu Staff Writer | LiveScience
    It turns out that these elusive seabirds had lived on the islands undetected for at least 2,800 years, according to new, unpublished research presented Dec. 11 at the American Geophysical Union meeting in Washington, D.C. It all started when a group of researchers spent 10 months doing what they thought was a pan-Antarctic survey of Adélie penguins by looking through every single cloud-free satellite image that they had of the southern continent. "We thought that we knew where all the [Adélie] penguin colonies were," said Heather Lynch, an ecologist at the Stony Brook University, during the news conference.That is, until...
  • Ancient supernovae may be recorded in Antarctic ice

    03/03/2009 9:58:29 PM PST · by rdl6989 · 18 replies · 493+ views
    newscientist.com ^ | Mar 3, 2009 | by Stephen Battersby
    A newly examined ice core shows what may be the chemical traces of supernovae that exploded a thousand years ago. Yuko Motizuki of the RIKEN research institute in Wako, Japan, and colleagues analysed the nitrate content of an ice core drilled at Dome Fuji station in Antarctica. Nitrate is produced in the atmosphere by nitrogen oxides, which in turn should be created by the gamma radiation from a supernova. Motizuki's group found high nitrate concentrations in three thin layers about 50 metres deep. Because snow gradually builds up into layers of ice, depth indicates age. After calibrating this icy calendar...
  • Researchers consider whether supernovae killed off large ocean animals at dawn of Pleistocene

    12/11/2018 1:37:35 PM PST · by ETL · 23 replies
    Phys.org ^ | Dec 11, 2018 | University of Kansas
    About 2.6 million years ago, an oddly bright light arrived in the prehistoric sky and lingered there for weeks or months. It was a supernova some 150 light years away from Earth. Within a few hundred years, long after the strange light in the sky had dwindled, a tsunami of cosmic energy from that same shattering star explosion could have reached our planet and pummeled the atmosphere, touching off climate change and triggering mass extinctions of large ocean animals, including a shark species that was the size of a school bus. The effects of such a supernova—and possibly more than...
  • Global warming is causing more snow to fall on Antarctica - has slowed rising sea levels by a THIRD

    12/11/2018 6:33:48 AM PST · by Zakeet · 43 replies
    (UK) Daily Mail ^ | December 10, 2018 | Joe Pinkstone
    Global warming is causing more snow to fall over Antarctica and it is stunting the surge of rising sea levels. Scientists have discovered that the increased amount of snow on Antarctica has helped offset rates of twentieth-century global sea-level rise by up to a third. Since the start of the 20th century the snow on the frozen continent and the Antarctic ice Sheet have played a pivotal role in governing sea level change. The delicate balance between ice sheets melting and increased snowfall has a major part to play on sea levels around the world.
  • No One Has Ever Crossed Antarctica Unsupported. Two Men Are Trying Right Now.

    11/21/2018 3:52:26 PM PST · by bitt · 38 replies
    nytimes ^ | 11/11/2018 | Adam Skolnick
    PUNTA ARENAS, Chile — A weather window opened on Halloween morning, the typical stiff winds and polar fog relenting, and the flight to Antarctica was cleared for takeoff. For nearly a week, Colin O’Brady, a 33-year-old American adventure athlete, and British Army Captain Louis Rudd, 49, had been waiting in Punta Arenas, Chile, on the Strait of Magellan, near the shattered end of the South American continent. In separate buildings blocks away from one another, they had been immersed in similar tasks: weighing and re-bagging their freeze-dried provisions and sorting through polar-grade gear. Their stashes included sleeping bags good for...