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Keyword: antarctic

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  • Remains of 90-million-year-old rainforest found near South Pole

    04/01/2020 9:48:52 AM PDT · by Oldeconomybuyer · 233 replies
    UPI ^ | April 1, 2020 | By Brooks Hays
    Some 90 million years ago, a temperate rainforest grew near the South Pole. Scientists recovered fossil traces of the ancient rainforest from seafloor sediment cores collected near West Antarctica's Pine Island Glacier. Seismic data suggested the sediment layer was unique, but researchers weren't expecting to find the remnants of a Cretaceous forest. "The finding of this well preserved 'forest soil' layer was actually a lucky dip," researcher Ulrich Salzmann, professor of palaeoecology at the University of Northumbria in Britain, told UPI. "We did not know of the existence of this layer before." Among the sediment layers, Salzmann and his research...
  • Delingpole: David ‘Greta of the Third Age’ Attenborough Launches BBC’s Climate Bedwetting Blitzkrieg

    01/18/2020 11:33:10 AM PST · by rktman · 21 replies ^ | 1/18/2020 | James Delingpole
    The BBC has completely lost the plot on climate change with its star enviro loon Sir David Attenborough leading the charge over the cliff edge like the wrinkliest, long-tusked male in a herd of suicidal walruses. “The moment of crisis has come” in efforts to tackle climate change, Sir David Attenborough has warned. According to the renowned naturalist and broadcaster, “we have been putting things off for year after year”. “As I speak, south east Australia is on fire. Why? Because the temperatures of the Earth are increasing,” he said.
  • Remember: Ice Age is Coming 1978 Science Facts [20+ minute video w/Leonard Nimoy narration]

    12/05/2019 8:38:30 PM PST · by beaversmom · 64 replies
    You Tube ^ | September 22, 2019 | bBrain via YouTube
    Video Link
  • Explosion in Antarctic sea ice levels may cause another ice age

    10/30/2019 3:15:38 PM PDT · by Innovative · 51 replies
    Fox News ^ | Oct.30, 2019 | Chris Ciaccia
    Upside-down "rivers" of warm ocean water may be one of the causes of Antarctica's ice shelves breaking up, leading to a rise in sea levels. But a new study suggests an increase in sea ice in a colder climate may lead to a much more devastating change in the Earth's climate — another ice age. Using computer simulations, the research suggests that an increase in sea ice could significantly alter the circulation of the ocean, ultimately leading to a reverse greenhouse effect as carbon dioxide levels in the ocean increase and levels in the air decrease. “One key question in...
  • Explosion in Antarctic sea ice levels may cause another ice age

    10/30/2019 7:04:46 AM PDT · by ThunderSleeps · 91 replies
    Fox News Online ^ | 10/30/19 | Chris Ciaccia
    Upside-down "rivers" of warm ocean water may be one of the causes of Antarctica's ice shelves breaking up, leading to a rise in sea levels. But a new study suggests an increase in sea ice may lead to a much more devastating change in the Earth's climate — another ice age.
  • Did NASA know back in 1958 our Sun and not CO2 was causing climate change? (trunc)

    01/13/2020 9:28:00 AM PST · by all the best · 49 replies
    The Big Wobble ^ | January 12, 2020
    Actually, the records of temperature and CO2 over the past 650,000 years indicate that Earth's temperature always rises first, followed by a rise in Carbon Dioxide. Published papers, clearly show it is always temperature which rises first by at least several hundred years and then the carbon dioxide responds.
  • World’s deepest point on land found hidden in Antarctica

    12/13/2019 5:24:17 AM PST · by BenLurkin · 41 replies
    ZME Science ^ | 12/12/2019 | Tibi Puiu
    A trough beneath Denman Glacier is the deepest continent point in the world, measuring more than 2 miles beneath sea level. Scientists have known for years that Denman Glacier, a very large glacier in East Antarctica, has a trough beneath it, but they had no idea just how deep it was until glaciologists at the University of California, Irvine, mapped the region. According to this recently compiled a sophisticated map of the icy continent, this trench is actually two miles (3.5 kilometers) below sea level, which practically makes it the deepest point in the world. The new topographic map of...
  • NASA's Undersea Robot Crawls Beneath Antarctic Ice in Test for Icy Moons

    11/20/2019 11:14:38 AM PST · by BenLurkin · 11 replies ^ | 11/20/2019 | By Meghan Bartels
    NASA engineers are already working on an underwater rover they hope could one day tackle the challenges posed by ocean worlds like Jupiter's moon Europa and Saturn's moon Enceladus. A team has been working on such a robot, called Buoyant Rover for Under-Ice Exploration or BRUIE, for a few years now. NASA is taking a prototype of that rover to Antarctica for testing in the most similar environment to those moons found on Earth. The tests will take place at Australia's Casey research station along the coast of Antarctica far south of Australia, where BRUIE will spend a month exploring...
  • Ancient air challenges prominent explanation for a shift in glacial cycles

    10/30/2019 3:10:35 PM PDT · by BenLurkin · 46 replies ^ | 10/30/2019
    During the past 2.6 million years, Earth’s climate has alternated between warm periods known as interglacials, when conditions were similar to those of today, and cold glacials, when ice sheets spread across North America and northern Europe. Before about 1 million years ago, the warm periods recurred every 40,000 years, but after that, the return period lengthened to an average of about 100,000 years. It has often been suggested that a decline in the atmospheric concentration of carbon dioxide was responsible for this fundamental change. Writing in Nature, Yan et al.1 report the first direct measurements of atmospheric CO2 concentrations...
  • South Pole’s ozone hole shrinks to smallest since discovery

    10/27/2019 2:44:06 PM PDT · by 11th_VA · 44 replies
    Business Mirror ^ | Oct 28, 2019
    WASHINGTON—The ozone hole near the South Pole this year is the smallest since it was discovered, but it is more due to freakish Antarctic weather than efforts to cut down on pollution, National Aeronautics and Space Administration (Nasa) reported. This fall, the average hole in Earth’s protective ozone layer is 3.6 million square miles (9.3 million square kilometers). That’s down from a peak of 10.3 million square miles (26.6 million square kilometers) in 2006. This year’s hole is even smaller than the one first discovered in 1985. “That’s really good news,” Nasa scientist Paul Newman said Tuesday. “That means more...
  • Ozone hole is the smallest on record due to 'rare event,' NASA says

    10/21/2019 12:33:00 PM PDT · by AT7Saluki · 38 replies
    Fox News ^ | 10/21/19 | Chris Ciaccia
    Unusual weather patterns in the upper atmosphere over Antarctica have caused a drastic reduction in ozone depletion, leaving the ozone with the smallest hole seen since its discovery in 1982, according to NASA and the National Oceanic and Atmospheric Administration. The government agencies said that the hole had shrunk to 3.9 million square miles for the remainder of September and October, according to satellite data. The peak in the hole was 6.3 million square miles, observed on Sept. 8. During normal weather conditions, the hole is usually around 8 million square miles during this time of year.
  • Flat-Earthers' Cruise Will Sail to Antarctica 'Ice Wall' at the Planet's Edge. Right.

    06/19/2019 11:08:33 AM PDT · by Gamecock · 175 replies
    Live Science ^ | 3/22/2019
    Organizers of an annual conference that brings together people who believe that the Earth is flat are planning a cruise to the purported edge of the planet. They're looking for the ice wall that holds back the oceans. The journey will take place in 2020, the Flat Earth International Conference (FEIC) recently announced on its website. The goal? To test so-called flat-Earthers' assertion that Earth is a flattened disk surrounded at its edge by a towering wall of ice. Believers in a flat Earth argue that images showing a curved horizon are fake and that photos of a round Earth...
  • Seals with antennas on their heads helped scientists solve an Antarctic mystery

    06/11/2019 9:17:23 AM PDT · by BenLurkin · 19 replies
    CNN ^ | June 11, 2019 | AJ Willingham,
    In 2016 and 2017, a hole of open water, called a polynya, appeared in the winter ice of the Weddell Sea in Antarctica. It eventually grew to about 19,000 square miles; roughly twice the size of Vermont. Though polynyas are not unusual, this large and frequent of a hole was a great opportunity for scientists to figure out why, exactly, these holes were appearing. A team from the University of Washington explored the hole with a combination of robots, radio equipment and seals with antennas stuck to their heads. The team found that, in order for a polynya to occur,...
  • Ancient rocky structure found beneath Antarctica. And it's messing with the ice

    05/30/2019 9:30:41 AM PDT · by ETL · 26 replies ^ | May 30, 2019 | Stephanie Pappas Live Science Contributor | LiveScience
    The structure is an old tectonic boundary, probably formed during the birth of the Antarctic continent or shortly thereafter. According to new research published May 27 [2019] in the journal Nature Geoscience, this boundary protects the ice shelf's grounding line, the point at which it is thick enough to extend all the way to the sea floor. The geology created by the boundary keeps warm, melt-promoting ocean water away from that part of the shelf. But the ocean circulation driven by that same geology drives intense summer melt along the shelf's easterly edge. "We could see that the geological boundary...
  • Amazon River Up To 11 Million Years Old, Says Study

    07/08/2009 12:55:12 PM PDT · by decimon · 40 replies · 862+ views
    Scientific Blogging ^ | July 7th 2009 | News Staff
    Sediment column at the mouth of the Amazon River. Credit: NASA The Amazon River has been around for 11 million years ago and in its shape for the last 2.4 million years ago, according to a study on two boreholes drilled in proximity of the mouth of the Amazon River by Petrobras, the national oil company of Brazil. Until recently the Amazon Fan, a sediment column of around 10 kilometres in thickness, proved a hard nut to crack, and scientific drilling expeditions such as Ocean Drilling Program could only reach a fraction of it. Recent exploration efforts by Petrobras lifted...
  • 1989: U.N. Predicts Disaster if Global Warming Not Checked

    03/18/2019 7:14:07 AM PDT · by TexasGurl24 · 63 replies
    AP ^ | June 29, 1989 | PETER JAMES SPIELMANN
    UNITED NATIONS (AP) _ A senior U.N. environmental official says entire nations could be wiped off the face of the Earth by rising sea levels if the global warming trend is not reversed by the year 2000. Coastal flooding and crop failures would create an exodus of ″eco- refugees,′ ′ threatening political chaos, said Noel Brown, director of the New York office of the U.N. Environment Program, or UNEP. He said governments have a 10-year window of opportunity to solve the greenhouse effect before it goes beyond human control. As the warming melts polar icecaps, ocean levels will rise by...
  • A potential fallacy in ice core studies?

    08/05/2008 2:08:35 AM PDT · by y2gordo · 14 replies · 121+ views
    A thought about ice cores just occurred to me, and I need someone in the know to verify or refute this argument. Scientists claim to know what the temperature was in past years primarily by drilling ice core samples. They measure levels of specific gasses, like carbon dioxide, that are trapped within the layers of the ice, and somehow they calculate the temperature for that time based off of "certain assumptions" (none of which are mentioned in the wikipedia article). That is rather dubious inandof itself, but I want to take that thought in a different direction. We all know...
  • Ancient microbes yield clues to ice age timing

    03/09/2019 12:38:24 PM PST · by BenLurkin · 23 replies
    Cosmos Magazine ^ | 08 March 2019
    For several million years, the Earth cycled through ice ages at a regular pace, but then, 1.25 million to 700,000 years ago, something changed: ice ages went from lasting 40,000 years to 100,000. … By looking at the microscopic shells of microorganisms called foraminifera, Adam Hasenfratz of the Geological Institute in Zürich, Switzerland, and colleagues, find evidence of a reduction in deep water circulation, causing less carbon dioxide to be released into the air. Oceanic changes in the Antarctic Zone could have ensured “that glacial conditions persisted despite orbital changes to the contrary”, the study says. The new research, presented...
  • Mysterious new orca species likely identified (plus video)

    03/08/2019 4:07:49 AM PST · by blueplum · 32 replies
    National Geographic ^ | 07 Mar 2019 | Douglas Main
    At the bottom of the world, in some of the roughest seas, live mysterious killer whales that look very different from other orcas. Now, for the first time, scientists have located and studied these animals in the wild. The orcas are “highly likely” to be a new species, says Robert Pitman, a researcher with the National Oceanic and Atmospheric Administration. The scientific team made the finding in January about 60 miles off the coast of Cape Horn, Chile..
  • Why are some icebergs green in Antarctica? Researchers think they've solved century-old mystery

    03/05/2019 4:46:28 PM PST · by EdnaMode · 33 replies
    Fox News ^ | March 5, 2019 | Jennifer Earl
    The stunning sight of emerald green-colored icebergs in Antarctica has been documented for more than a century — in literature and beyond. For decades, scientists have argued about the cause behind the bizarre phenomenon and debated why the green-hued ice chunks aren't the typical blue or white color. But a recent discovery from a 2016 research trip to East Antarctica’s Amery Ice Shelf may provide the final clue they've been waiting for. In a new study published in the Journal of Geophysical Research: Oceans, researchers found marine ice varies in color due to the "abundance of foreign constituents in the...