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Latest Ice core Stories

Notre Patrimoine Polaire***Our Polar Heritage
2014-09-07 03:00:11

Mark Floyd, Oregon State University A new study of three ice cores from Greenland documents the warming of the large ice sheet at the end of the last ice age – resolving a long-standing paradox over when that warming occurred. Large ice sheets covered North America and northern Europe some 20,000 years ago during the coldest part of the ice age, when global average temperatures were about four degrees Celsius (or seven degrees Fahrenheit) colder than during pre-industrial times. And...

south pole ice core
2014-07-29 04:40:32

redOrbit Staff & Wire Reports - Your Universe Online Norwegian explorer Roald Amundsen might have been the first person to reach the South Pole, but an international team of scientists has discovered that he was actually beaten to his destination – by industrial air pollution. In research appearing in Monday’s edition of the Nature journal Scientific Reports, Joe McConnell of Nevada's Desert Research Institute (DRI) and his colleagues explain how data from 16 ice cores collected...

2014-07-28 10:19:39

Oregon State University Scientists have long been concerned that global warming may push Earth's climate system across a "tipping point," where rapid melting of ice and further warming may become irreversible -- a hotly debated scenario with an unclear picture of what this point of no return may look like. A newly published study by researchers at Oregon State University probed the geologic past to understand mechanisms of abrupt climate change. The study pinpoints the emergence of...

West Antarctic Ice Sheet
2014-07-12 06:07:29

redOrbit Staff & Wire Reports - Your Universe Online Much of the climate change-related research published recently has focused on the impact of warming temperatures on the West Antarctic ice sheet – but what is it about this region that causes scientists to be so interested in it? According to the US National Oceanic and Atmospheric Administration (NOAA), the West Antarctic ice sheet contains two major slabs of frozen water (the Ronne and Ross Ice Shelves), as well as several...

History Of Volcanic Forcing Identified In Antarctic Ice Cores
2014-07-07 09:31:23

Gerard LeBlond for redOrbit.com - Your Universe Online A team of scientists from Reno, Nevada’s Desert Research Institute (DRI), led by Michael Sigl and Joe McConnell, has reconstructed historic volcanic sulfate emissions from the Southern Hemisphere. It is considered to be the most accurate and defined reconstruction to date, and was published in a manuscript in the online addition of Nature Climate Change. Included in the study and submitting ice core samples and measurements, were...

Greenland ice sheet
2014-05-20 05:10:03

April Flowers for redOrbit.com - Your Universe Online In 1889 and 2012, there was large-scale melting of the Greenland ice sheet. Scientists have assumed these events were driven by warming alone, but a new study from the Thayer School of Engineering at Dartmouth College and the Desert Research Institute reveals that rising temperatures and ash from Northern Hemisphere forest fires combined to cause the ice melting events. The findings, published in the Proceedings of the National...

Taylor Glacier
2014-04-22 04:55:21

April Flowers for redOrbit.com - Your Universe Online Climatologists use deep-drilled ice core samples in order to understand the climate changes our planet has endured during and between the Ice Ages. A team of scientists has recently developed a new technique, described in the Proceedings of the National Academy of Sciences, to confirm the age of a 120,000-year-old sample of Antarctic Ice. Scientists will be able to use the new dating technique to identify ice that is much older,...

Ancient Landscape Found Beneath Greenland Ice Sheet
2014-04-18 11:47:38

[ Watch The Video: Ancient Soil Found Under Greenland Ice Sheet ] By Joshua E. Brown, University of Vermont Glaciers are commonly thought to work like a belt sander. As they move over the land they scrape off everything—vegetation, soil, and even the top layer of bedrock. So scientists were greatly surprised to discover an ancient tundra landscape preserved under the Greenland Ice Sheet, below two miles of ice. "We found organic soil that has been frozen to the bottom of the...

acid rain ice cores
2014-04-14 11:18:40

Brett Smith for redOrbit.com - Your Universe Online Over four decades ago, acid rain caused by industrial emissions was eradicating fish and dissolving stone monuments in the Eastern US. However, emissions of sulfur dioxide and nitrogen dioxide, both of which cause acid rain, dropped significantly after the passing of the Clean Air Act of 1970. A new study from a team of French and American scientists has revealed that the rise and fall of these atmospheric contaminants has been...

Peru Ice Cap Shrinking Due To Warming Temps, Not Less Snowfall
2014-02-26 12:56:35

Brett Smith for redOrbit.com - Your Universe Online When we think about how climate change is shrinking glaciers around the world – we are probably imagining the massive sheets of ice around the Earth’s polar regions. However, glaciers do exist in tropical latitudes, albeit at extremely high elevations, and a new study in the journal Geology has found that one of these tropical glaciers is shrinking as a result of warming temperatures – not lower snowfall levels as some scientists...


Word of the Day
jument
  • A beast of burden; also, a beast in general.
'Jument' ultimately comes from the Latin 'jugum,' yoke.
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