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News articles on Antarctica

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Mongabay.com news articles on Antarctica in blog format. Updated regularly.

Video: no sunlight, no food, frozen conditions, but NASA finds complex life

(03/16/2010) In a discovery at the bottom of the world that could have implications on the search for extraterrestrial life, researchers were astounded to find an amphipod swimming beneath a massive Antarctic ice sheet.


Photos: Giant iceberg breaks off Antarctica

(02/26/2010) An iceberg the size of Luxembourg broke off from Antarctica after it was hit by another iceberg, reports Reuters. The separation could impact ocean circulation and affect marine life say researchers.


Climate change melting southern Antarctic Peninsula ice shelves

(02/23/2010) The US Geological Survey (USGS) has found that every ice front in the southern part of the Antarctic Peninsula—the coldest part—has been retreating overall for the past sixty years with the greatest changes visible since 1990.


Climate change pushes massive Antarctic glacier past tipping point

(01/14/2010) A new study shows that a major Antarctic glacier has likely passed its tipping point, putting it on track to lose 50 percent of its ice in 100 years. Such a loss is estimated to raise global sea levels by 24 centimeters (9.4 inches), according to the study published in the Proceedings of Royal Society A.


Catastrophic sea level rise could occur with only two degrees Celsius warming

(12/17/2009) Allowing the climate to rise by just two degrees Celsius—the target most industrialized nations are currently discussing in Copenhagen—may still lead to a catastrophic sea level rise of six to nine meters, according to a new study in Nature. While this rise in sea levels would take hundreds of years to fully occur, inaction this century could lock the world into this fate.


Photos: ten beloved species threatened by global warming

(12/14/2009) The International Union for the Conservation of Nature (IUCN) has released a list of ten species that are likely to be among the hardest hit by climate change, including beloved species such as the leatherback sea turtle, the koala, the emperor penguin, the clownfish, and the beluga whale. The timing of the list coincides with the negotiations by world leaders at the UN Climate Change Conference to come up with an international agreement to combat climate change.


Oceans' ability to sequester carbon diminishing

(11/18/2009) A new study—the first of its kind—has completed an annual accounting of the oceans' intake of carbon over the past 250 years, and the news is troubling. According to the study, published in Nature, the oceans' ability to sequester carbon is struggling to keep-up with mankind's ever-growing emissions. Since 2000 researchers estimate that while every year the oceans continue to sequester more anthropogenic carbon emission, the overall proportion of carbon taken in by the oceans is declining.


Satellite lasers show melting of Greenland, Antarctic worse than expected

(09/23/2009) Resaerchers examining 43 million satellite measurements of Antarctica's thinning ice sheets and 7 million of Greenland's, show that the ice is melting faster than expected. Published in Nature the research is the most comprehensive picture to date of the melting glaciers, allowing scientists to better predict how sea levels may rise.


Photo: guano stains helps researchers track penguins by satellite

(06/10/2009) Researchers from the British Antarctic Survey (BAS) have uncovered a novel way to locate the world’s largest penguin’s breeding sites, employing satellite imagery they seek out Emperor penguin guano, droppings which show up starkly on the otherwise unsullied white sea ice of Antarctica. Searching for the penguins themselves had proven too difficult, since the birds’ black-and-white coloring allowed them to blend in with the shadows made by the ice. The penguin droppings however are light-brown—a colors that has no other source on sea ice, besides guano.


Antarctica’s sea ice increasing due to ozone hole, but scientists predict global warming will catch-up

(04/23/2009) Increasing ice in Antarctica is not a sign that the earth is actually cooling instead of warming as some climate change-skeptics have attested. A new study finds that the growth in Antarctic ice during the last 30 years is actually due to shifting weather patterns caused by the hole in the ozone layer. The researchers predict that eventually global warming will catch up to Antarctica leading to overall melting as it has in the Arctic.


Extremophiles discovered below Antarctic glacier are remnants of marine life

(04/16/2009) Living in isolation for millions of years, cut off from sunlight and oxygen, surviving by breathing iron beneath an Antarctic glacier—such are the conditions of newly-discovered microbes living under Taylor Glacier in Antarctica’s desert-waste, the McMurdo Dry Valleys.


Ice bridge collapses, leaving Wilkins Ice Shelf vulnerable

(04/05/2009) As though commenting on world leader's lack of progress in combating climate change at the G20 conference last week, an ice bridge connecting the Wilkins Ice Shelf to the Antarctic continent broke off over the weekend. Long expected by scientists, the break is perhaps the beginning of the Wilkins Ice Shelf completely coming loose from Antarctica.


Experts forecast probability of global warming tipping points

(03/16/2009) The probability of Earth's climate passing a "tipping point" that could result in large impacts within the next two centuries is greater than 50 percent, according to research published in Proceedings of the National Academy of Sciences


Photos: 13,000 species found in Arctic, Antarctic Oceans

(02/16/2009) A marine census has documented more than 13,000 species in the Arctic and Antarctic Oceans, including several hundred that may be new to science. Conducted over a two-year period under often perilous conditions — including monster waves and dangerous polar bears — the series of 18 surveys turned up a wealth of information on the diversity, distribution and abundance of marine life. The research will also help establish a baseline for measure changes in polar ecosystems.


Global warming may doom emperor penguins to extinction

(01/27/2009) Disappearing sea ice around Antarctica may put emperor penguins at risk of extinction within the next century, warn scientists writing in this week's Proceedings of the National Academy of Sciences.


Antarctica shows net warming over past 50 years

(01/22/2009) Despite a cooling trend in the East Antarctic Ice Sheet, Antarctica has experienced net warming over the past 50 years, report researchers writing in the January 22 edition of Nature. Analyzing data from satellites and weather stations authors led by Eric Steig of the University of Washington (UW) found that "warming in West Antarctica exceeded one-tenth of a degree Celsius per decade for the last 50 years and more than offset the cooling in East Antarctica", according to a statement from UW.


Ozone hole is second-largest on record in 2008

(10/30/2008) The Antarctic ozone hole reached its second-largest size on record in 2008, reports NASA.


2-degree rise in temperature may doom penguins colonies

(10/10/2008) More than half Antarctica's penguin colonies are at risk by a 2-degree global rise in temperatures, according to a report released by the environmental group WWF.


Study confirms strong link between CO2 and climate over 70,000 years

(09/11/2008) Analysis of ice core samples from Greenland show a strong correlation between atmospheric carbon dioxide levels and abrupt changes in climate, reports a paper published in Science.


Sea level rise likely limited to 2-6 feet by 2100

(09/04/2008) Global sea level rise is unlikely to exceed 2 meters (6 1/2 feet) by the end of century argues a new study published in the journal Science.


Seals used for climate change research

(08/11/2008) Animals have aided humanity for millennia. We are used to considering animals like dogs, horses, cows, and lamas as utilitarian in a very direct way, but what about elephant seals?


Fossils grant new insight into the Antarctica's natural history

(08/07/2008) At one time an alpine lake was inhabited by mosses and diatoms; insects such as beetles and midges crawled among sparse ferns and various crustaceans lived amid the lake's calm waters. This tundra-like landscape was the last stand of life in Antarctica, and it existed up to 14 million years ago before suddenly vanishing.


Carbon dioxide levels at highest level in 800,000 years

(05/28/2008) Greenhouse gases are at the highest levels in the past 800,000 years according to a study published in the journal Nature.


Geoengineering solution to global warming could destroy the ozone layer

(04/24/2008) A proposed plan to fight global warming by injecting sulfate particles into Earth's upper atmosphere could damage the ozone layer over the Arctic and Antarctic, report researchers writing in the journal Science.


Ozone-hole recovery may spur Antarctic warming

(04/24/2008) A full recovery of the stratospheric ozone hole could strongly modify climate change in the Southern Hemisphere and possibly amplify warming of the Antarctic continent, a new study finds.


Swan finds love with paddleboat

(03/25/2008) In a bizarre story out of Muenster, Germany, a black swam will be reunited with its companion — a paddleboat shaped like an outsized white swan, reports the Associated Press.


Photos: Warming triggers massive Antarctic ice shelf collapse

(03/25/2008) Satellites have captured the collapse of a massive ice shelf in Antarctica. At 160 square miles the area of collapsed ice was seven times the size of Manhattan. Scientists say the collapse is the beginning of a "runaway" disintegration of the 13,680 square kilometer (5,282 square mile) Wilkins Ice Shelf on the southwest Antarctic Peninsula. The region has experienced the largest temperature increase on the planet, rising by 0.5 degree Celsius (0.9 degree Fahrenheit) per decade over the past 50 years.


Giant sea creatures discovered in Antarctica

(03/21/2008) An eight week long survey of New Zealand's Antarctic waters has turned up giant creatures including jellyfish with 12-foot tentacles and 2-foot-wide starfish, as well as up to eight previously undiscovered species of mollusc, reports the Associated Press (A.P.).


Deep-sea krill discovered in Antarctica

(02/25/2008) Antarctic krill have been found living at depths up to 3000 meters near the Antarctic Peninsula, a finding that changes scientists' understanding of a fundamental part of the ocean food chain. Previously researchers believed that krill lived only in the upper ocean.


Photos of bizarre creatures discovered in Antarctica

(02/19/2008) Researchers aboard the Aurora Australis, an Australian vessel, have discovered a trove of strange creatures on the sea floor near East Antarctica.


Warming could bring sharks to Antarctica with devastating ecological consequences

(02/15/2008) Global warming could make the waters around Antarctica hospitable to sharks for the first time in 40 million years. Their return could have devastating ecological consequences report researchers from the University of Rhode Island.


Global warming puts penguins at risk of extinction

(02/11/2008) Climate change could put the long-term survival of sub-Antarctic King Penguins at risk by reducing the availability of prey, reports a new study published in Proceedings of the National Academy of Sciences.


Climate system approaching 9 critical tipping points

(02/04/2008) Earth is approaching and may pass nine important climate tipping points this century, according to research published this week in Proceedings of the National Academy of Science (PNAS).


Scientists: cut emissions now to avoid climate tipping point

(12/14/2007) Countries need to act soon to cut carbon dioxide emissions if the worst impacts of global warming are to be avoided, warned a panel of scientists speaking Thursday at the fall meeting of the American Geophysical Union in San Francisco.


NASA releases high-resolution map of Antarctica

(11/27/2007) A team of researchers from NASA, the U.S. Geological Survey, the National Science Foundation and the British Antarctic Survey today unveiled a high resolution, true-color map of Antarctica. The map is expected to help scientists better understand changes occurring on the icy continent.


Ozone Hole makes Early Appearance in 2007

(08/28/2007) The Antarctic ozone hole was discovered in 1985 by British scientists Joseph Farman, Brian Gardiner, and Jonathan Shanklin of the British Antarctic Survey. Though called a hole, it is rather a location in the ozone shield -- a layer that keeps ultra-violet rays from affecting us directly -- that is substantially lacking in ozone concentration.


Melting glaciers and ice cap will drive sea level rise

(07/19/2007) Melting glaciers and ice caps will contribute more to global sea level rise this century than the melting of the Greenland and Antarctic ice sheets, reports a study published in the current issue of Science.


Melting Antarctic icebergs help increase biodiversity, slow climate change

(06/21/2007) Icebergs breaking off Antarctica are unexpected hotspots of biological productivity and have a surprising role in climate change, reports a new study published in the journal Science.


Glaciers speed up due to global warming

(06/05/2007) Antarctic glaciers are moving faster due to global warming, reports the British Antarctic Survey.


California-sized area of snow melt spotted in Antarctica

(05/16/2007) NASA has found clear evidence of a California-sized area of snow melting in west Antarctica in January 2005 in response to warm temperatures.


Deep-sea creatures discovered near the Antarctic

(05/16/2007) Scientists have found hundreds of new marine creatures in the depths of the Weddell Sea near Antarctica, including Carnivorous sponges, free-swimming worms, crustaceans, and mollusks, reports research published in the current issue of the journal Nature.


Can penguins be used as bio-indicators of climate change?

(04/04/2007) Scientists at the University of Birmingham are working to determine whether the king penguin can be used as a bio-indicator for global warming.


Antarctic insects make natual anti-freeze to survive cold

(04/02/2007) Insects in the some of the world's coldest places produce natural anti-freeze that enables them to survive sub-freezing temperatures for months on end according to research represented at the Society for Experimental Biology's Annual Meeting in Glasgow.


Melting Antarctic glaciers could trigger sea level rise

(03/15/2007) Scientists have identified four melting Antarctic glaciers that could trigger a rapid rise in global sea levels according to a study published in the journal Science.


Melting ice reveals unknown species in Antarctica

(02/26/2007) An expedition to an area of seabed recently exposed by melting ice in Antarctica has discovered several previously unknown species of marine life, including deep sea lilies, gelatinous sea squirts, glass sponges, amphipod crustaceans, and orange starfish. The findings were announced Sunday by the Census of Antarctic Marine Life, a 10-year effort to map the biodiversity of the world's oceans.


Antarctic Peninsula warming affects penguins, krill

(02/15/2007) While much of Antarctica has cooled over the past decade, a warming trend in the Antarctic Peninsula may indicate what the future holds for the rest of the icy continent's wildlife. Researchers at Ohio State University say that higher temperatures have already forced penguin populations to migrate south and may have reduced the availability of krill that serve as the based of the Antarctic food chain.


Antarctic temperatures are not rising

(02/15/2007) Temperatures in Antarctica are not rising as predicted by many climate models, according to research presented at the annual meeting of the American Association for the Advancement of Science in San Francisco. David Bromwich, researcher with the Byrd Polar Research Center at Ohio State University, reports that his work has found no increase in precipitation over Antarctica in the last 50 years. Most climate models predict that precipitation and temperature will increase over Antarctica as the planet warms.


Antarctic subglacial lakes plumbed by satellite

(02/15/2007) The discovery of a network of rapidly filling and emptying lakes lying beneath at least two of West Antarctica's ice streams suggests that change in the Antarctic could be more rapid than previously believed, according to a team of scientists writing in Friday's edition of the journal Science.


Climate change caused dramatic changes in Antarctica 14 million years ago

(08/25/2006) Climate change 14 million years ago produced catastrophic drainage of subglacial lakes in Antarctica causing dramatic changes in the continent's landscape according to new research.


Ozone hole recovery slower than expected

(06/29/2006) Scientists from NASA and other agencies have concluded that the ozone hole over the Antarctic will recover around 2068, nearly 20 years later than previously believed. Researchers from NASA, the National Oceanic and Atmospheric Administration (NOAA) and the National Center for Atmospheric Research (NCAR) have developed a new tool, a math-based computer model, to predict the timing of ozone hole recovery. Their findings will be published tomorrow in Geophysical Research Letters.



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