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NSF-funded Study: Antarctica Served as Climatic Refuge 250 Million Years Ago during Earth's Greatest Extinction

12/1/2009 A new fossil species suggests that about 250 million years ago some land animals may have survived the largest known mass extinction in Earth's history--the end-Permian extinction--by living in cooler climates in Antarctica.

NOAA: Significant Ozone Hole Remains Over Antarctica

11/17/2009 The Antarctic ozone hole reached its 2009 peak circumference in late September, according to measurements by NOAA. It This ranked as the 10th largest since satellite measurements began in 1979.

Ancient Penguin DNA Raises Doubts about Accuracy of Genetic Dating

11/10/2009 Penguins that died 44,000 years ago in Antarctica have provided DNA samples that challenge the accuracy of traditional genetic aging measurements, and suggest those approaches may underestimate the age of many specimens by 200 to 600 percent.

From Climate Science to Ecology: NSF-funded LARISSA Takes an In-depth Look at the Collapse of a Massive Antarctic Ice Shelf

10/27/2009 The LARsen Ice Shelf System, Antarctica (LARISSA) project will conduct a uniquely in-depth and wide-ranging study of an ice-shelf ecosystem in the wake of the spectacular collapse of the Larsen B ice shelf.

109th Airlift Wing Starts Operation Deep Freeze: Planes Depart for Antarctica

10/21/2009 The New York Air National Guard’s 109th Airlift Wing kicked off its 21st year of support for American Antarctic research today, as two ski-equipped C-130s roared off the runway here bound for the South Pole.

Arctic Sediments Show that 20th-Century Warming is Unlike Natural Variation

10/19/2009 The possibility that climate change might simply be a natural variation like others that have occurred throughout geologic time is dimming, according to a team of reserachers from three U.S. universities.

USGS: Arctic Now Traps 25 Percent of World’s Carbon--But That Could Change

10/14/2009 The arctic now traps or absorbs up to 25 percent of global carbond dioxide, but climate change could alter that amount significantly, according to a study published in the November issue of Ecological Monographs.

Arctic Sea-ice Extent Remains Low; 2009 sees Third-lowest Mark Since Records Began in 1979

10/6/2009 Arctic sea ice extent in September was the third lowest since satellite records began in 1979. More ice cover remained this year than during the previous record-setting years of 2007 and 2008. But sea ice has not recovered to previous levels.

Unusual Arctic Warmth, Tropical Wetness Likely Cause for Methane Increase

9/25/2009 Unusually high temperatures in the Arctic and heavy rains in the tropics likely drove a global increase in atmospheric methane in 2007 and 2008 after a decade of near-zero growth, according to a new study.

St. Olaf Scientist Receives $680,000 Grant for Antarctic Study

9/1/2009 Bob Jacobel, Grace Whittier Professor of Physics at St. Olaf College, has received NSF funding to participate in an interdisciplinary collaboration of scientists who are studying subglacial environments at two coastal sites in West Antarctica.
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