Keyword: antarctic
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Researchers recently uncovered a startling phenomenon — a set of teardrop-shaped lakes in Antarctica that mysteriously move, jogging along at a pace as fast as 5 feet (1.5 meters) per day. The lakes sit atop the George VI ice shelf — a massive floating plain of ice larger than Vermont, composed of the mingled fronts of glaciers that flow off the edge of the continent and rest on the ocean. Glaciologist Doug MacAyeal at the University of Chicago, and student researcher C.H. LaBarbera, noticed the traveling bodies of water while studying satellite images of 11 ice shelf lakes captured between...
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Thirty-six athletes from 17 countries braved the sub-zero temperatures to complete the 26-mile race at the bottom of the world. The start line for the race was at the Union Glacier Antarctic base camp in the southern Ellsworth Mountains, just over 60 miles from the South Pole. Ahead of the race, every competitor had to have their skin fully protected from the sub-zero temperatures. Clothing included a full balaclava, goggles, gloves and mittens, long johns, waterproof running trousers and several layers of thermal clothing. But the harsh conditions are all part of the appeal of the race. "I guess there's...
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A bizarre underwater "icicle of death" has been filmed by a BBC crew. With time lapse cameras, specialists recorded salt water being excluded from the sea ice and sinking. The temperature of this sinking brine, which was well below 0C, caused the water to freeze in an icy sheath around it. Where the so-called "brinicle" met the sea bed, a web of ice formed that froze everything it touched, including sea urchins and starfish....
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A huge, emerging crack has been discovered in one of Antarctica's glaciers, with a NASA plane mission providing the first-ever detailed airborne measurements of a major iceberg breakup in progress. NASA's Operation Ice Bridge, the largest airborne survey of Earth's polar ice ever flown, is in the midst of its third field campaign from Punta Arenas, Chile. .. The glaciers of the Antarctic, and Greenland, Ice Sheets, commonly birth icebergs that break off from the main ice streams where they flow in to the sea, a process called calving. The crack was found in c, which last calved a significant...
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The science journal Nature is making headlines this week with news of the largest hole in the ozone layer over the North Pole in history, rivaling the size of its well known Antarctic cousin. Researchers credit this "unprecedented Arctic ozone loss" to "unusually long-lasting cold conditions" in the stratosphere at a time when their colleagues are in turmoil over melting Arctic sea ice a few miles below, supposedly caused by man-made global warming. Of course, humans are also responsible for the chilly stratosphere, they say. With sky-is-falling overtones the article's authors warn, "We cannot at present predict when such severe...
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'Global implications for climate research', says US gov Some cheerful news on the climate change front today, as US government boffins report that ice breaking off the Antarctic shelves and melting in the sea causes carbon dioxide to be removed from the environment. This powerful, previously unknown "negative feedback" would seem likely to revise forecasts of future global warming significantly downwards. The US National Science Foundation (NSF) which funded the iceberg study, describes the results as having "global implications for climate research". "These new findings... confirm that icebergs contribute yet another, previously unsuspected, dimension of physical and biological complexity to...
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Image: Montana.eduFrom AAAS online:Widespread Persistent Thickening of the East Antarctic Ice Sheet by Freezing from the Base AbstractAn International Polar Year aerogeophysical investigation of the high interior of East Antarctica reveals widespread freeze-on that drives significant mass redistribution at the bottom of the ice sheet. While surface accumulation of snow remains the primary mechanism for ice sheet growth, beneath Dome A 24% of the base by area is frozen-on ice. In some places, up to half the ice thickness has been added from below.These ice packages result from conductive cooling of water ponded near the Gamburtsev Subglacial Mountain ridges and...
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WELLINGTON (AFP) – An extraordinary underground observatory for subatomic particles has been completed in a huge cube of ice one kilometre on each side deep under the South Pole, researchers said. Building the IceCube, the world's largest neutrino observatory, has taken a gruelling decade of work in the Antarctic tundra and will help scientists study space particles in the search for dark matter, invisible material that makes up most of the Universe's mass. The observatory, located 1,400 metres underground near the US Amundsen-Scott South Pole Station, cost more than 270 million dollars, according to the US National Science Foundation (NSF)....
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While everyone seems to be watching the Arctic extent with intense interest, it’s bipolar twin continues to make enough ice to keep the global sea ice balance near normal.
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SNIP "Some climate scientists have distanced themselves from the IPCC Working Group II’s (WGII’s) Fourth Assessment Report (AR4), Impacts, Adaptation, and Vulnerability, prefering instead the stronger hard science in the Working Group I (WGI) Report—The Physical Science Basis. Some folks have even gone as far as saying that no errors have been found in the WGI Report and the process in creating it was exemplary. Such folks are in denial. SNIP SNIP.. "This inconsistency was brought to the IPCC Chapter 4 authors’ attention by several IPCC commenters. Commentor John Church wrote “I do not understand why this trend is insignificant...
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Scotch whisky meant to warm Antarctic explorers retrieved after century locked in ice Associated Press WELLINGTON, New Zealand - This Scotch has been on the rocks for a century. Five crates of Scotch whisky and two of brandy have been recovered by a team restoring an Antarctic hut used more than 100 years ago by famed polar explorer Ernest Shackleton. Ice cracked some of the bottles that had been left there in 1909, but the restorers said Friday they are confident the five crates contain intact bottles "given liquid can be heard when the crates are moved." New Zealand Antarctic...
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A major Antarctic glacier has passed its tipping point, according to a new modelling study. After losing increasing amounts of ice over the past decades, it is poised to collapse in a catastrophe that could raise global sea levels by 24 centimetres. Pine Island glacier (PIG) is one of many at the fringes of the West Antarctic ice sheet. In 2004, satellite observations showed that it had started to thin, and that ice was flowing into the Amundsen Sea 25 per cent faster than it had 30 years before. Now, the first study to model changes in the ice sheet...
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Nearly a century after Capt. Robert Falcon Scott explored the southern continent, experts are working to save the British explorer's wooden hut (pictured on Ross Island, Antarctica, in August 2006) and three others in the area from slipping under the snow forever. The sanctuary measures 50 feet (15 meters) long and 25 feet (7.6 meters) wide and was built to house up to 33 men. Scott and his crew stayed at the hut before their ill-fated Terra Nova expedition to the South Pole in January 1912. Scott and four others died after being beaten to the pole by Norwegian explorer...
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SEA water under an East Antarctic ice shelf showed no sign of higher temperatures despite fears of a thaw linked to global warming that could bring higher world ocean levels, first tests showed yesterday. Sensors lowered through three holes drilled in the Fimbul Ice Shelf showed the sea water is still around freezing and not at higher temperatures widely blamed for the break-up of 10 shelves on the Antarctic Peninsula, the most northerly part of the frozen continent in West Antarctica. "The water under the ice shelf is very close to the freezing point," Ole Anders Noest of the Norwegian...
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A conservation group's boat had its bow sheared off and was in danger of sinking as it took on water Wednesday after it was struck by a Japanese whaling ship in the frigid waters of Antarctica, the group said. The boat's six crew members were safely transferred to another of the Sea Shepherd Conservation Society's vessels, the newly commissioned Bob Barker. The boat is named for the American game show host who donated $5 million to buy it. The clash was the most serious in the past several years, during which the Sea Shepherd has sent vessels into far-southern waters...
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Remains of the first airplane ever taken to Antarctica, in 1912, have been found by Australian researchers, the team announced Saturday. The Mawson's Huts Foundation had been searching for the plane for three summers before stumbling upon metal pieces of it on New Year's Day. "The biggest news of the day is that we've found the air tractor, or at least parts of it!" team member Tony Stewart wrote on the team's blog from Cape Denison in Antarctica's Commonwealth Bay. Australian polar explorer and geologist Douglas Mawson led two expeditions to Antarctica in the early 1900s, on the first one...
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Climate Change: A peer-reviewed study by a respected Canadian physicist blames the interplay of cosmic rays and chlorofluorocarbons for 20th-century warming. The CFCs are now gone, and so is warming — perhaps for the next 50 years. Much of the nation got a white Christmas this year, some in unprecedented quantities. A record-breaking storm deposited 12 to 30 inches of snow in Virginia, Maryland and Washington, D.C. Many places set records for the most snow in a single December day as more than 50% of the U.S. was covered by the white stuff. Scientists (and here we use the word...
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WELLINGTON (AFP) – Two blocks of butter have been found intact after nearly a century in an Antarctic hut used by British explorer Robert Falcon Scott on his doomed 1910-12 expedition, a report said. Television New Zealand reported that conservators found the two blocks of New Zealand butter in bags in stables attached to the expedition Hut at Cape Evans in Antarctica. The extreme cold of the polar region has preserved the hut and expedition equipment inside, but recent signs of deterioration had prompted the Antarctic Heritage Trust to launch a preservation project. The trust's Lizzie Meek said the butter...
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No. We came out of a 'little ice age' around 1850 and the temperature has increased slightly due to this, but nothing abnormal is happening. Global warming alarmists will tell you the polar caps are melting. This isn't exactly true. The University of Illinois keeps the sea ice data. As you can see from the chart below, Arctic ice is decreasing. However, Antarctic ice is currently increasing. When you combine the two charts into a global sea ice chart, you can see sea ice has been very stable for the last 150 years.
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CAPE ROYDS, Antarctica — This spit of black volcanic rock that juts out along the coast of Antarctica is an inhospitable place. Temperatures drop below –50 Fahrenheit and high winds cause blinding snowstorms... But if you happen upon the small wooden hut that sits at Cape Royds and wriggled yourself underneath, you'd find a surprise stashed in the foot and a half of space beneath the floorboards. Tucked in the shadows and frozen to the ground are two cases of Scotch whisky left behind 100 years ago by Sir Ernest Shackleton after a failed attempt at the South Pole. Conservators...
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And the funny thing is that we've only kept records for 30 years. Townhall also covered this. Marco Tedesco (Earth and Atmospheric Sciences, City College of New York) is the lead author of "An updated Antarctic melt record through 2009 and its linkages to high-latitude and tropical climate variability."
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Climate Change: As a Colorado Rockies playoff game is snowed out, scientists report that Arctic sea ice is thickening and Antarctic snow melt is the lowest in three decades. Whatever happened to global warming? Al Gore wasn't there to throw out the first snowball, er, baseball, so he might not have noticed that Saturday's playoff game between the Colorado Rockies and the Philadelphia Phillies was snowed out - in early October. The field should have been snow-free just as the North Pole was to be ice-free this year. It seems that ice at both poles hasn't been paying attention to...
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Climate Change: As a Colorado Rockies playoff game is snowed out, scientists report that Arctic sea ice is thickening and Antarctic snow melt is the lowest in three decades. Whatever happened to global warming? Al Gore wasn't there to throw out the first snowball, er, baseball, so he might not have noticed that Saturday's playoff game between the Colorado Rockies and the Philadelphia Phillies was snowed out — in early October. The field should have been snow-free just as the North Pole was to be ice-free this year. It seems that ice at both poles hasn't been paying attention to...
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Climate Change: As a winter storm shutters D.C.-area schools, Al Gore does a show-and-tell on global warming before Congress. The road to Copenhagen is being paved with good intentions."When it comes to the weather, folks in Washington don't seem to be able to handle things," a joking President Obama told reporters Wednesday morning. Daughters Malia and Sasha had a snow day as the private school they attend, Sidwell Friends, closed due to a winter ice and snow storm. Truer words were never spoken. When it comes to weather, the current Democratic majorities in the nation's capital don't have a clue....
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CHICAGO (AFP) – While a collapse of the West Antarctic ice sheet will have devastating impacts on global sea levels, a study published Thursday found the anticipated impact has been seriously overestimated. Using new measures of the ice sheet's geometry, British and Dutch researchers predict its collapse would cause sea levels to rise by 3.2 meters (11 feet) rather than previous estimates of five to seven meters. However, the study published in the journal Science found that even a one meter rise in sea levels would be significant enough to weaken the Earth's gravity field in the southern hemisphere and...
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Global Warming is not melting the continental ice cap. Come to find out there’s some shrinkage on the west side, but it’s more than made up by the glacial growth on the east side. But the business of Big Green is already at hand. As the prophet Al Gore said, “The debate is over.” We’ve already pegged the death of the polar bear on the automobile. Public schools are showing children photos of these cute, cuddly, white bears clinging to shrunken ice floes. Now we get to choose which side of Antarctica to believe in. Are you an optimist...
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Growing Antarctic sea ice linked to damaged ozone 21 Apr 2009 15:57:10 GMT Source: Reuters * Ozone hole causes Antarctic sea ice to grow * Study helps resolve global warming puzzle By Alister Doyle, Environment Correspondent OSLO, April 21 (Reuters) - An expansion of sea ice around Antarctica is linked to a hole in the ozone layer high in the atmosphere, according to a study on Tuesday that helps clear up a mystery about global warming. The findings, by scientists at the British Antarctic Survey (BAS) and the U.S. space agency NASA, explain an apparent contradiction between a thaw of...
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Actually, Al Gore is still in denial, but the evidence keeps stacking up. We have had reports of Arctic ice growth in the last year. Of course the 'global warming' theorists claimed this was dramatically offset by Antarctic ice melting. That does not appear to be true. Antarctic ice is growing too according to this Fox News report,If that is not enough evidence, All four major global temperature tracking outlets (Hadley, NASA's GISS, UAH, RSS) have released updated data. All show that over the past year, global temperatures have dropped precipitously. See graph.
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ICE is expanding in much of Antarctica, contrary to the widespread public belief that global warming is melting the continental ice cap. The results of ice-core drilling and sea ice monitoring indicate there is no large-scale melting of ice over most of Antarctica, although experts are concerned at ice losses on the continent's western coast. Antarctica has 90 per cent of the Earth's ice and 80 per cent of its fresh water, The Australian reports. Extensive melting of Antarctic ice sheets would be required to raise sea levels substantially, and ice is melting in parts of west Antarctica. The destabilisation...
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ICE is expanding in much of Antarctica, contrary to the widespread public belief that global warming is melting the continental ice cap. The results of ice-core drilling and sea ice monitoring indicate there is no large-scale melting of ice over most of Antarctica, although experts are concerned at ice losses on the continent's western coast. Antarctica has 90 per cent of the Earth's ice and 80 per cent of its fresh water. Extensive melting of Antarctic ice sheets would be required to raise sea levels substantially, and ice is melting in parts of west Antarctica. The destabilisation of the Wilkins...
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Willie Soon, a Harvard University astrophysicist and geophysicist with scores of peer-reviewed papers and books to his credit, said he is “embarrassed and puzzled” by the shallow science in papers asserting the Earth faces a climate crisis caused by global warming. Soon told the second International Conference on Climate Change on March in New York City, “We have a system [of peer reviewing scientific literature] that is truly, truly appalling.” Soon’s criticisms echoed an earlier presentation at the 2-1/2-day conference that was attended by about 700 scientists, economists, and policymakers considering the issue of “Global Warming: Was it ever really...
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PARIS (AFP) – A Jamaica-sized ice shelf is close to wrenching itself away from Antarctica, following dramatic weakening of an ice "bridge" linking it to the continent, the European Space Agency (ESA) reported Friday. The icy umbilical cord tying the Wilkins Ice Shelf to two islands on the Antarctic peninsula "looks set to collapse," ESA said. The evidence comes from radar pictures taken on Thursday by its Envisat Earth-monitoring satellite, the Paris-based agency said in a press release. Scientists have been keeping a worried eye on this ice shelf for years. For many, it is a barometer of global warming,...
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WASHINGTON – New information on Antarctica's regularly melting distant past is giving scientists a glimpse into what may be a flooded future as the planet warms up. The West Antarctic ice sheet collapsed periodically between 3 million and 5 million years ago, adding more than 16 feet to global sea level, according to the first examination of soil cores far below the surface of the Ross ice shelf. Also, new computer models suggest that warmer waters nearby attacked the ice from below, triggering those collapses. Both findings appear in studies published Thursday in the journal Nature. "What we're seeing in...
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GENEVA – Antarctic glaciers are melting faster across a much wider area than previously thought, scientists said Wednesday — a development that could lead to an unprecedented rise in sea levels. A report by thousands of scientists for the 2007-2008 International Polar Year concluded that the western part of the continent is warming up, not just the Antarctic Peninsula. Previously most of the warming was thought to occur on the narrow stretch pointing toward South America, said Colin Summerhayes, executive director of the Britain-based Scientific Committee on Antarctic Research and a member of International Polar Year's steering committee. But satellite...
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OSLO (Reuters) – Jagged mountains the size of the Alps have been found entombed in Antarctica's ice, giving new clues about the vast ice sheet that will raise world sea levels if even a fraction of it melts, scientists said on Tuesday. Using radar and gravity sensors, the experts made the first detailed maps of the Gamburtsev subglacial mountains, originally detected by Russian scientists 50 years ago at the heart of the East Antarctic ice sheet. "The surprising thing was that not only is this mountain range the size of the Alps, but it looks quite similar to the (European)...
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Eco-warriors and media hype aside, the fact is, as we head into 2009, that the world's ice mass has been expanding not contracting. Which will surprise evening news junkies fed a diet of polar bears floating about on ice floes and snow shelves falling into the oceans. But if a whole series of reports on ice growth in the Arctic, the Antarctic and among glaciers are right, then it is truth in the mainstream media (MSM) that's in meltdown not the polar ice caps. The problem for the MSM is that it long ago nailed its colors to the climate...
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At least 235 types of cold-loving creatures have been discovered thriving at the bottom of the Arctic and Antarctic seas, puzzling scientists about how they got to both ends of the earth. Until now, the warm tropics have been seen as a barrier keeping polar bears in the Arctic separate from penguins in the Antarctic. Only a few creatures have been known to live in both polar regions, such as long-migrating grey whales or Arctic terns. 'At least 235 species live in both polar seas despite an 11,000-km (6,835 miles) distance in between,' a decade-long international project to map the...
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Spinning a "mucus net" off its paddle-like foot-wings to trap algae and other foods, the swimming snail species Limacina helicinia is no bigger than a bean. But the discovery that it and at least 234 other species inhabit both Arctic and Antarctic waters is big news to biologists.
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WILKINS ICE SHELF, Antarctica (Reuters) - A huge Antarctic ice shelf is on the brink of collapse with just a sliver of ice holding it in place, the latest victim of global warming that is altering maps of the frozen continent. "We've come to the Wilkins Ice Shelf to see its final death throes," David Vaughan, a glaciologist at the British Antarctic Survey (BAS), told Reuters after the first -- and probably last -- plane landed near the narrowest part of the ice. The flat-topped shelf has an area of thousands of square kilometers, jutting 20 meters (65 ft) out...
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Daredevil SAS man-turned-explorer Bear Grylls was being airlifted to South Africa last night after being badly injured filming a TV documentary in Antarctica. The 34-year-old adventurer broke his shoulder in a life-threatening fall and was said to be in ‘shock and agony’ from a serious fracture which left the bone protruding from his body. The accident happened at 11pm British time on Friday, and Bear’s insurance company arranged for his evacuation by air ambulance for urgent medical treatment, at an estimated cost of £60,000. Daredevil: Bear Grylls broke his shoulder Bear was injured during the making of his latest daredevil...
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A group of isolated Antarctic islands have proved to be unexpectedly rich in life. The first comprehensive biodiversity survey of the South Orkney Islands, near the tip of the Antarctic Peninsula, has revealed that they are home to more species of sea and land animals than the Galapagos.Researchers from the British Antarctic Survey and the University of Hamburg, Germany, carried out the survey using a combination of trawl nets, sampling as deep as 1500m, and scuba divers. The team found over 1200 species, a third of which were not thought to live in the region. They also identified five new...
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Figure of the fossil ostracod from the Dry Valleys. The specimen is less than 1 mm long, but preserves an array of soft tissues including legs and mouth parts. A new fossil discovery- the first of its kind from the whole of the Antarctic continent- provides scientists with new evidence to support the theory that the polar region was once much warmer. The discovery by an international team of scientists is published today (**Embargoed until 00.01 BST Wednesday 23 July**) in Proceedings of the Royal Society B. It involved researchers from the University of Leicester, North Dakota State University,...
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PARIS (AFP) - New evidence has emerged that a large plate of floating ice shelf attached to Antarctica is breaking up, in a troubling sign of global warming, the European Space Agency (ESA) said on Thursday. Images taken by its Envisat remote-sensing satellite show that Wilkins Ice Shelf is "hanging by its last thread" to Charcot Island, one of the plate's key anchors to the Antarctic peninsula, ESA said in a press release. "Since the connection to the island... helps stabilise the ice shelf, it is likely the breakup of the bridge will put the remainder of the ice shelf...
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The newest analysis of trace gases trapped in Antarctic ice cores now provide a reasonable view of greenhouse gas concentrations as much as 800,000 years into the past, and are further confirming the link between greenhouse gas levels and global warming, scientists reported in the journal Nature. They also show that during that entire period of time, there have never been concentrations of carbon dioxide and methane as high as the current levels, said Edward Brook, an associate professor of geosciences at Oregon State University, and author of a Nature commentary on the new studies. "The fundamental conclusion that today's...
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Antarctica hasn't warmed as much over the last century as climate models had originally predicted, a new study finds. Climate change's effects on Antarctica are of particular interest because of the substantial amount of water locked up in its ice sheets. Should that water begin to melt, sea levels around the globe could rise and inundate low-lying coastal areas. The new study, detailed in the April 5 issue of the journal Geophysical Research Letters, marks the first time that researchers have been able to give a progress report on Antarctic climate model projections by comparing climate records to model simulations...
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A vast ice shelf hanging on by a thin strip looks to be the next chunk to break off from the Antarctic Peninsula, the latest sign of global warming's impact on Earth's southernmost continent. Scientists are shocked by the rapid change of events. Glaciologist Ted Scambos of the University of Colorado was monitoring satellite images of the Wilkins Ice Shelf and spotted a huge iceberg measuring 25 miles by 1.5 miles (41 kilometers by 2.5 kilometers - about 10 times the area of Manhattan) that appeared to have broken away from the shelf. Scambos alerted colleagues at the British Antarctic...
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Krill Discovered Living In The Antarctic AbyssFemale Antarctic krill. Krill have been found living and feeding down to depths of 3,000 meters. (Credit: Image courtesy of British Antarctic Survey) ScienceDaily (Feb. 26, 2008) — Scientists have discovered Antarctic krill (Euphausia superba) living and feeding down to depths of 3000 metres in the waters around the Antarctic Peninsula. Until now this shrimp-like crustacean was thought to live only in the upper ocean. The discovery completely changes scientists' understanding of the major food source for fish, squid, penguins, seals and whales. Reporting recently in Current Biology, scientists from British Antarctic Survey (BAS)...
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Antarctic may hold the future of archaeology Norman Hammond, Archaeology Correspondent It is a truism that archaeology begins yesterday, and now with only the archaeology of the future to plan for, the discipline has been expanding into areas of the globe where material culture has hitherto played little part. Antarctica is one of these new areas: more than two centuries of human occupation have left plentiful traces. At least five successive and partly overlapping phases of activity can be defined: sealing, whaling, polar exploration, scientific investigation and tourism. Sealing began in the late 18th century, when Captain James Cook’s account...
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Scientists have discovered a huge active volcano under Antarctica. - The BAS team says data from the volcano will help it predict future rises in sea-levels caused by melting ice.
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