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Arctic sea ice update: Unlikely to break records, but continuing downward trend
The melting of sea ice in the Arctic is well on its way toward its annual (2013-08-23)

For the past 70 years, the Danube has almost never frozen over
Today, only the eldest inhabitants of the Danube Delta recall that, in the past, you could skate on the river practically every winter; since the second half of the 20th century, Europe's second-largest river has only rarely frozen over. (2018-05-24)

Antarctic volcanic eruptions triggered abrupt southern hemisphere climate changes near the end of the last ice age
New findings published today in the Proceedings of the National Academy of Sciences by Desert Research Institute Professor Joseph R. McConnell, Ph.D., and colleagues document a 192-year series of volcanic eruptions in Antarctica that coincided with accelerated deglaciation about 17,700 years ago. (2017-09-04)

Fjords are 'hotspots' in global carbon cycling
While fjords are celebrated for their beauty, these ecosystems are also major carbon sinks that likely play an important role in the regulation of the planet's climate, new research reveals. (2015-05-04)

Climate can grind mountains faster than they can be rebuilt
An international research team has for the first time attempted to measure all the material leaving and entering a mountain range over more than a million years and discovered that erosion caused by glaciation during ice ages can wear down mountains faster than plate tectonics can build them. Researchers studied the St. Elias Mountains on Alaska's coast and found that erosion accelerated sharply about 1 million years ago when global cooling triggered stronger ice ages. (2015-11-23)

West Antarctica ice sheet existed 20 million years earlier than previously thought
The results of research conducted by professors at UC Santa Barbara and colleagues mark the beginning of a new paradigm for our understanding of the history of Earth's great global ice sheets. The research shows that, contrary to the popularly held scientific view, an ice sheet on West Antarctica existed 20 million years earlier than previously thought. (2013-09-04)

Estimating the wear and tear of ice on structures over coming decades or even centuries
Mechanisms behind the effects of ice on physical structures -- particularly over the long term -- have remained an open question in a time of continuous environmental change. Researchers at Aalto University have developed a new method of assessing how ever-moving, heavy loads of ice affect structures like bridges or even wind turbines across a wide variety of conditions over the very long term, even centuries. (2019-06-04)

Insects in freezing regions have a protein that acts like antifreeze
The power to align water molecules is usually held by ice, which affects nearby water and encourages it to join the ice layer. But in the case of organisms in freezing habitats, a powerful antifreeze protein can convince water molecules to behave in ways that benefit the protein instead. In this week's Journal of Chemical Physics, scientists are taking a closer look at the molecular structure of the antifreeze protein to understand how it works. (2019-04-02)

Warming climate may cause arctic tundra to burn
Research from ancient sediment cores indicates that a warming climate could make the world's arctic tundra far more susceptible to fires than previously thought. The findings, published this week in the online journal, PLoS ONE, are important given the potential for tundra fires to release organic carbon -- which could add significantly to the amount of greenhouse gases already blamed for global warming. (2008-03-04)

Scientists predict extensive ice loss from huge Antarctic glacier
Current rates of climate change could trigger instability in a major Antarctic glacier, ultimately leading to more than 2m of sea-level rise. (2016-05-18)

Sea ice plays a pivotal role in the Arctic methane cycle
The ice-covered Arctic Ocean is a more important factor concerning the concentration of the greenhouse gas methane in the atmosphere than previously assumed. Experts from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research report on the newly discovered interactions between the atmosphere, sea ice and the ocean in a recent online study in the journal Nature's Scientific Reports. (2015-11-13)

At the core
At the University of Miami Rosenstiel School of Marine and Atmospheric Science, a new high-tech tool will find answers to historic climate changes from earth and marine sediment core samples. The XRF Core Scanner is only the second to make its way to the United States, and the first of this new and improved model made by Avaatech, a company based in the Netherlands. (2006-09-19)

Global warming doubles rate of ocean rise
Global ocean levels are rising twice as fast today as 150 years ago, and human-induced warming appears to be the culprit. The rate is almost two millimeters per year today compared to one millimeter annually for the past several thousand years. A new record of sea level change during the past 100 million years, based on drilling studies along the New Jersey coast, also argues against some widely held tenets of geological science. (2005-11-24)

Rise of atmospheric oxygen more complicated than previously thought
The appearance of oxygen in the Earth's atmosphere probably did not occur as a single event, but as a long series of starts and stops, according to an international team of researchers who investigated rock cores from the FAR DEEP project. (2011-12-01)

Greenland glacier gives birth to giant iceberg
Envisat has been observing a rare event in the Arctic since early August -- a giant iceberg breaking off the Petermann glacier in Northwest Greenland. (2010-08-09)

Climate history rewritten: Arctic ice an early arrival
Artic ice formed about 45 million years ago - roughly 14 million years ahead of previous predictions - according to new research published in Nature. An international team of scientists, including Brown geologist Steven Clemens, says this startling evidence shows that glaciers formed in tandem at Earth's poles, providing important insights into global climate change. (2006-05-31)

Climate can grind mountains faster than they can be rebuilt, study indicates
Researchers for the first time have attempted to measure all the material leaving and entering a mountain range over millions of years and discovered that glacial erosion can, under the right circumstances, wear down mountains faster than plate tectonics can build them. (2015-11-23)

A new theory describes ice's slippery behavior
In this week's Journal of Chemical Physics, Bo Persson, a scientist at the J├╝lich Research Center, discusses his new theory that describes how slippery ice gets when a hard material like a ski slides across it. The theory agrees well with experimental data and could help design better sliding systems, as well as contribute to a fundamental understanding of ice friction that could help explain the movement of glaciers and other natural processes. (2015-12-08)

Novel hypothesis goes underground to predict future of Greenland ice sheet
The Greenland ice sheet melted a little more easily in the past than it does today because of geological changes, and most of Greenland's ice can be saved from melting if warming is controlled, says a team of Penn State researchers. (2019-02-01)

Mars' northern polar regions in transition
A newly released image from ESA's Mars Express shows the north pole of Mars during the red planet's summer solstice. All the carbon dioxide ice has gone, leaving just a bright cap of water ice. (2011-08-05)

Combined Arctic ice observations show decades of loss
Historic submarine and modern satellite records show that average ice thickness in the central Arctic Ocean dropped by 65 percent from 1975 to 2012. September ice thickness, when the ice cover is at a minimum, dropped by 85 percent. (2015-03-03)

Ancient algae found deep in tropical glacier
Rice, Nebraska and Ohio State researchers looking for carbon in equatorial ice cores find diatoms, a type of algae. Their presence is evidence of what the landscape around the Andes in Peru might have been like more than a millennium ago. (2015-06-01)

A new timeline for glacial retreat in Western Canada
Much of western Canada was ice-free as early as 14,000 years ago, a new study reports. (2017-11-09)

ICESaT captures earth in spectacular 3-D images
NASA's Ice, Cloud and land Elevation Satellite (ICESat) is sending home important scientific data and spectacular 3-D views of Earth's polar ice sheets, clouds, mountains, and forestlands. The data are helping scientists understand how life on Earth is affected by changing climate. (2003-12-12)

Evidence from past suggests climate trends could yield 20-foot sea-level rise
When past temperatures were similar to or slightly higher than the present global average, sea levels rose at least 20 feet, suggesting a similar outcome could be in store if current climate trends continue. (2015-07-09)

Greenland rapidly rising as ice melt continues
Scientists at the University of Miami say Greenland's ice is melting so quickly that the land underneath is rising at an accelerated pace. The paper is now available as an advanced online publication, by Nature Geoscience. The idea behind the study is that if Greenland is losing its ice cover, the resulting loss of weight causes the rocky surface beneath to rise. (2010-05-18)

Climate scientist warns world of widespread suffering if further climate change is not forestalled
One of the world's foremost experts on climate change is warning that if humans don't moderate their use of fossil fuels, there is a real possibility that we will face the environmental, societal and economic consequences of climate change faster than we can adapt to them. Lonnie Thompson at Ohio State University posed that possibility in a just-released special climate-change edition of the journal The Behavior Analyst. (2010-12-08)

Tidewater glaciers: Melting underwater far faster than previously estimated?
A tidewater glacier in Alaska is melting underwater at rates upwards of two orders of magnitude greater than what is currently estimated, sonar surveys reveal. (2019-07-25)

Barrels of ancient Antarctic air aim to track history of rare gas
An Antarctic field campaign last winter led by the US and Australia has successfully extracted some of the largest samples of air dating from the 1870s until today. Researchers will use the samples to look for changes in the molecules that scrub the atmosphere of methane and other gases. (2019-12-13)

New satellite keeps close watch on Antarctic ice loss
A recently-launched satellite mission has captured precision data on the elevation of the Antarctic ice sheet proving a valuable addition to monitoring efforts in the region, according to work published this week in The Cryosphere. (2019-03-06)

West Antarctic ice shelves tearing apart at the seams
A new study examining nearly 40 years of satellite imagery has revealed that the floating ice shelves of a critical portion of West Antarctica are steadily losing their grip on adjacent bay walls, potentially amplifying an already accelerating loss of ice to the sea. (2012-03-27)

Ice Age Antarctic Ocean gives clue to 'missing' atmospheric carbon dioxide
Syracuse University Earth sciences Assistant Professor Zunli Lu and international collaborators explored the question of carbon dioxide storage in the oceans. The team glimpsed into the ocean's past, thanks to a group of tiny ocean dwellers called foraminifera. (2016-04-01)

Finnish research improves the reliability of ice friction assessment
Sliding speed and ice temperature affect the surface friction of ice more than had previously been thought. The thermodynamic model developed by VTT Technical Research Centre of Finland research scientists shows that under certain conditions ice warms and melts when an item of material slides across its surface. (2014-04-02)

The interplay of dancing electrons
Negative ions play an important role in everything from how our bodies function to the structure of the universe. Scientists from the University of Gothenburg, Sweden, have now developed a new method that makes it possible to study how the electrons in negative ions interact in, which is important in, for example, superconductors and in radiocarbon dating. (2011-11-29)

Arctic ice melt could pause for several years, then resume again
Although Arctic sea ice appears fated to melt as the climate continues to warm, the ice may temporarily stabilize or somewhat expand at times over the next few decades, new research indicates. (2011-08-11)

Warm sea water is melting Antarctic glaciers
The ice sheet in West Antarctica is melting faster than expected. New observations published by oceanographers from the University of Gothenburg and the US may improve our ability to predict future changes in ice sheet mass. The study was recently published in the journal Nature Geoscience. (2012-12-06)

Mann to receive Hans Oeschger Medal from European Geosciences Union
Michael Mann, professor of meteorology and geosciences and director, Earth System Science Center, Penn State, was awarded the Hans Oeschger Medal of the European Geosciences Union. (2011-11-16)

NASA support key to glacier mapping efforts
Thanks in part to support from NASA and the National Science Foundation, scientists have produced the first-ever detailed maps of bedrock beneath glaciers in Greenland and Antarctica. This new data will help researchers better project future changes to glaciers and ice sheets, and ultimately, sea level. (2014-09-29)

Sea level rise of 1 meter within 100 years
New research indicates that the ocean could rise in the next 100 years to a meter higher than the current sea level -- which is three times higher than predictions from the UN's Intergovernmental Panel on Climate Change, IPCC. The groundbreaking new results from an international collaboration between researchers from the Niels Bohr Institute at the University of Copenhagen, England and Finland are published in the scientific journal Climate Dynamics. (2009-01-08)

Global glacier melt continues
Glaciers around the globe continue to melt at high rates. Tentative figures for the year 2007, of the World Glacier Monitoring Service at the University of Zurich, Switzerland, indicate a further loss of average ice thickness of roughly 0.67 meter water equivalent (m w.e.). Some glaciers in the European Alps lost up to 2.5 m w.e. (2009-01-29)

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