Melts ice. Medical search. Frequent questions (1)

New GPS measurements reported in the paper found that in some areas (where the mantle might be a little springier), Greenland's underlying land mass was rising by nearly half an inch (12 mm) every year as ice is removed. (popsci.com)
The study suggests that instead of Greenland's melting ice contributing 10.5 feet (3.2 m) to sea level rise over the past 20,000 years, the Greenland Ice Sheet has contributed around 15.1 feet (4.6 m) to sea level rise. (popsci.com)
08/16/2012) Four weeks before Greenland's melting season usually ends, it has already blown past all previous records. (mongabay.com)
But important losses may have already started and could raise sea level as much or more than melting of Greenland's ice over hundreds or thousands of years," Alley told attendees Feb 16 at the annual meeting of the American Association for the Advancement of Science. (sciencedaily.com)
Scientists concerned about sea level rise have long focused on Greenland's southeast and northwest regions, where large glaciers stream iceberg-sized chunks of ice into the Atlantic Ocean. (newswise.com)
But a new study published Jan. 21 in the Proceedings of the National Academy of Sciences found that the largest sustained ice loss from early 2003 to mid-2013 came from Greenland's southwest region, which is mostly devoid of large glaciers. (newswise.com)
Bevis' team used data from GRACE and from GPS stations scattered around Greenland's coast to identify changes in ice mass. (newswise.com)
Bevis likened the melting of Greenland's ice to coral bleaching: Once the ocean's water hits a certain temperature, coral in that region begins to bleach. (newswise.com)
The melting of Arctic sea ice is unlike anything we've see, going back over 160 years, a new map shows the thawing underside of Greenland's ice sheet, and the melting in Greenland's extreme northwest is setting up to release cold war-era hazardous waste. (theweathernetwork.com)
Scientists have been carefully watching the decline of Greenland's ice sheet, as the trillions of tons of ice there are expected to have a significant impact on global sea levels in the coming years and decades due to climate change. (theweathernetwork.com)
Greenland's ice melting season normally runs from June to August but the Danish Meteorological Institute said this year's melting started on April 30, the second-earliest time on record going back to 1980. (peoplesworld.org)

The 2023 cumulative melt area is currently the second largest in the 45-year satellite record, trailing the extreme melt year of 2012. (nsidc.org)
The top left map illustrates the cumulative melt days on the Greenland Ice Sheet for the 2023 melt season through August 27. (nsidc.org)
The bottom graph shows daily melt area from April 1 to August 27, 2023, with daily melt area for other high melt years, plus the record high year of 2012. (nsidc.org)
This graph shows the daily melt area for Greenland from late July through the end of August for 2023 and longer for several other years with late-season melt area peaks. (nsidc.org)
Note that 2010 finished the year with a higher total than the current date for 2023 because of a very late melt event in early September. (nsidc.org)

The Arctic's disappearing ice - on land and in the ocean - highlights a unique dichotomy: Greenland is ground zero for the impacts of climate change, but it could also become ground zero for sourcing the metals needed to power the solution to the crisis. (cnn.com)
The results reveal a delicate balance between wind and ocean as the sea ice pack recedes under climate change. (nasa.gov)
06/06/2012) If melting sea ice and glaciers weren't enough, now climate change is producing what researchers call a "structurally novel ecosystem" in the northwestern Eurasian tundra. (mongabay.com)
Alley believes he knows the direction to go to gain a better understanding of the ice sheets, how they work and the effect they have on climate change. (sciencedaily.com)
Melting ice caused by climate change has given ships more access to Arctic waters, which researchers say could have serious consequences for the survival of bowhead and beluga whales. (cbc.ca)
In either case, the resulting radiative forcing likely has an order of magnitude similar to that of the forcing from doubling carbon dioxide, thus demonstrating that the sea ice feedback to radiation balance through the Arctic water cycle is potentially a major component of climate change. (sciencedaily.com)
Oct. 19, 2022 Climate change is causing the Arctic Ocean's sea ice to melt away. (sciencedaily.com)
Sea ice in the Arctic has shrunk to its smallest extent ever recorded, smashing the previous record minimum and prompting warnings of accelerated climate change. (motherjones.com)
Bevis said a natural weather phenomenon-the North Atlantic Oscillation, which brings warmer air to West Greenland, as well as clearer skies and more solar radiation-was building on man-made climate change to cause unprecedented levels of melting and runoff. (newswise.com)
But with climate change, scientists warn melting snow and ice could eventually expose what lies beneath the base - creating political conflict over who's responsible for dealing with the toxic waste that would surface. (cbc.ca)
The dramatic melt-off of Arctic sea ice due to climate change is hitting closer to home than millions of Americans might think. (eponline.com)
The melting of polar ice due to climate change will open global shipping routes through the Arctic in summer by mid-century, according to experts. (lu.se)

The Greenland Ice Sheet, though subcontinental in size, is huge compared with other glaciers in the world except that of Antarctica . (britannica.com)
The climate of the Greenland Ice Sheet, though cold, is not as extreme as that of central Antarctica. (britannica.com)
At high altitudes on the Greenland Ice Sheet and in central Antarctica, ice crystals form in the cold air during clear periods and slowly settle out as fine "diamond dust. (britannica.com)
Greenland and Antarctica have the last two significant ice sheets on Earth. (popsci.com)
The Greenland and Antarctica ice sheets are melting, but the amounts that will melt and the time it will take are still unknown, according to researchers. (sciencedaily.com)
However, recent studies show that the ice sheets on both Greenland and in Antarctica are melting faster than the snow is replacing the mass. (sciencedaily.com)
A number of things can contribute to the increased rate of melting in Greenland and Antarctica. (sciencedaily.com)
Ice shelf failures have also occurred on Antarctica where, for example, most of the Larsen B ice shelf disintegrated in March of 2002 and increased the rate of ice stream flow eight times. (sciencedaily.com)
Warmer oceans, caused by general global warming or local events can trigger more breakups of ice shelves and faster flow of ice streams in Antarctica. (sciencedaily.com)
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. (mongabay.com)
When Captain Cousteau explored Antarctica aboard the Calypso in 1972-73, the Larsen B ice shelf was 3,250 square km bigger and krill abundance in the Peninsula was much higher than today. (mongabay.com)
Ice is melting at accelerating rates in the Arctic, Antarctica, Greenland, and glaciers all over the world. (skepticalscience.com)
The only ice sheets are in Antarctica and Greenland. (skepticalscience.com)
Similarly, Antarctica is also losing ice at an accelerating rate . (skepticalscience.com)
Antarctica is basically divided into two distinct ice sheets, the West Antarctic and East Antarctic. (skepticalscience.com)
Ice loss from West Antarctica has been increasing nearly three times faster in the past decade than during the previous one - and much more quickly than scientists predicted. (livescience.com)
Analyzing 21 years of data from four separate observation techniques, scientists from NASA and UC Irvine (UCI) discovered that glaciers in the region are shedding more ice mass than any other part of Antarctica and are the biggest contributors to rising sea levels in the region. (commondreams.org)
Glaciers in Antarctica are melting at an alarming rate. (nationofchange.org)
However, the long-term effect of the melting of ice sheets in Greenland and Antarctica remains largely uncertain. (europa.eu)

But when the ice melts away or gets thinner during warmer periods, the crust starts to bounce back, a process called postglacial rebound. (popsci.com)
This fresh water is important in the Arctic in part because it floats above the warmer, salty water and helps to protect the sea ice from melting, which in turn helps regulate Earth's climate. (nasa.gov)
The atmosphere is warmer at lower altitudes, so the now lower surface experiences even more melting. (spacedaily.com)
This spreading can either help preserve the ice sheet by allowing it to adjust to increased temperature or accelerate ice melting by moving ice to lower, warmer, places. (spacedaily.com)
Everything about this points in the same direction: we've made the Earth warmer," Ted Scambos with the National Snow and Ice Data Center told Reuters. (mongabay.com)
Because the majority of West Antarctica's ice sheet is attached to a sub-sea level ice bed, warmer ocean currents are able to eat away at the 'grounding line'--the area where the ice meets the bed. (commondreams.org)
A warmer Earth increases the melting of sea ice during summer, exposing darker ocean water to incoming sunlight. (eponline.com)

As we read about this record Arctic ice melt, is this a coincidence? (nhpr.org)

Wind blows the gyre in a clockwise direction around the western Arctic Ocean, north of Canada and Alaska, where it naturally collects fresh water from glacial melt, river runoff and precipitation. (nasa.gov)
Melting of glacial ice will probably raise sea level around the globe, but how fast this melting will happen is uncertain. (spacedaily.com)
As a result, glacial archaeology -the study of objects retrieved from glaciers and ice patches-has recently come into its own. (mentalfloss.com)
As the Mendenhall Glacier near Juneau, Alaska (seen above), was advancing over 1000 years ago, a flow of glacial melt-icy water and gravel-preceded its path, covering an ancient forest with gravel. (mentalfloss.com)

It turns out the world's glaciers are losing ice at an accelerating rate. (skepticalscience.com)

In large amounts, this ice becomes glaciers and ice sheets, building up into vast masses thousands of feet thick. (popsci.com)
Archaeologists working in the region are increasingly finding new artifacts revealed by melting glaciers and ice patches, but they're working in a race against time-the artifacts remain perfectly preserved while locked in the ice, but as soon as the ice melts, they are in danger of degradation from contact with the open air. (mentalfloss.com)
The climate system encompasses the global atmosphere, oceans, land surface, cryosphere (snow, sea ice, glaciers and ice sheets), vegetation and various biogeochemical processes such as the carbon and nitrogen cycles. (lu.se)

Arctic sea ice has been disappearing far faster than scientists initially predicted. (mongabay.com)
Previously, many scientists suggested that this would offset increasing melting. (sciencedaily.com)
Alley notes that a collaboration of government and academic scientists created the atmospheric and ocean models, but collaborations to model the ice are only just being developed. (sciencedaily.com)
Until now, scientists have glimpsed life under Antarctica's ice shelves only through drill holes. (mongabay.com)
There is a growing consensus among scientists that a decrease in sea ice would increase Arctic precipitation because of increased evaporation. (sciencedaily.com)
Scientists began to monitor this cycle in the late 1970s, and this year, they saw less ice than ever before - a lot less ice. (nhpr.org)
COLUMBUS, Ohio - Greenland is melting faster than scientists previously thought-and will likely lead to faster sea level rise-thanks to the continued, accelerating warming of the Earth's atmosphere, a new study has found. (newswise.com)
Climate scientists and glaciologists have been monitoring the Greenland ice sheet as a whole since 2002, when NASA and Germany joined forces to launch GRACE . (newswise.com)
Scientists have discovered a long, narrow canyon being carved under Antarctica's Dotson Ice Shelf. (axios.com)
Climate scientists predict the ice around Camp Century in Greenland - a secret Cold War U.S. military base - will melt before the end of this century, potentially causing an environmental disaster. (cbc.ca)
Gathering together historical records from a number of sources, scientists have now given us a detailed look at the state of Arctic sea ice, back to the year 1850, to match the extensive timeline of global temperature measurements we can draw upon when assessing our changing climate. (theweathernetwork.com)
Scientists have now gathered data from four different sources - computer models, ice-penetrating radar, surface motion of the ice and satellite terrain data - to plot a map of the underside of the island's ice sheet. (theweathernetwork.com)
Scientists test the age of sea ice off the northern coast of Russia. (yale.edu)
But scientists have discovered that 80 percent of this new sea ice now melts before it can leave coastal waters - up from 50 percent in 2000. (yale.edu)
With just 20 percent of new Russian sea ice making its way to the central Arctic Ocean, the region is losing an important means of transporting nutrients, algae, and sediment, the scientists note. (yale.edu)

Thus, this ice sheet, in contrast to the Antarctic Ice Sheet, is confined along most of its margin. (britannica.com)
The rate of precipitation on the Antarctic Ice Sheet is so low that it may be called a cold desert . (britannica.com)
The East Antarctic ice sheet, which is much bigger than the West Antarctic one, was until recently considered stable, but has also begun losing ice. (skepticalscience.com)
Even though the Antarctic ice sheet is losing mass, the extent of sea ice around the coast of the continent has grown slightly . (skepticalscience.com)
If the planet lost the entire West Antarctic ice sheet, global sea level would rise 11 feet, threatening nearly 13 million people worldwide and affecting more than $2 trillion worth of property. (livescience.com)
This is discounting the contribution of any melt from the West Antarctic ice sheet which could contribute a further 5 meters, and the more long term risk of East Antarctic ice sheet melt, which is losing mass at a rate of 57 billion tonnes per year, and if melted in entirety would see sea levels rise by a further 60 meters. (lifeboat.com)
Let's be optimistic here - the Antarctic ice sheets are unlikely to disappear in time scales we need to worry about today - but the Greenland ice sheet is topical. (lifeboat.com)
Sea ice occurs in both the Arctic and Antarctic. (grida.no)

Every summer, some of the ice that covers the Arctic Ocean melts. (nhpr.org)
Sea ice grows during the winter months and melts during the summer months, but some sea ice remains all year covering large areas of the Arctic Ocean. (grida.no)
The northern coast of Russia is largely considered the most important spot for the formation of new sea ice in the Arctic Ocean, fueled by the area's shallow waters, frigid winter temperatures, and a strong wind that pushes ice to the open sea. (yale.edu)
The shallow Russian shelf or marginal seas of the Arctic Ocean are broadly considered to be the "nursery" of Arctic sea ice. (yale.edu)

In the case of the Greenland Ice Sheet, the more temperatures increase, the faster the ice will melt, according to computer model experiments by Penn State geoscientists. (spacedaily.com)
In the past, the Greenland ice sheet has grown when its surroundings cooled, shrunk when its surroundings warmed and even disappeared completely when the temperatures became warm enough. (sciencedaily.com)
In Greenland, sustained increase in temperatures of only a few degrees will remove the ice. (sciencedaily.com)
As a result, areas covered by sea ice don't absorb much solar energy, so temperatures in the polar regions remain relatively cool. (grida.no)
If gradually warming temperatures melt sea ice over time, fewer bright surfaces are available to reflect sunlight back into space, more solar energy is absorbed at the surface, and temperatures rise further. (grida.no)
Above average temperatures are present across nearly the entire ice sheet, but particularly high temperatures exist across the northern third of the ice sheet. (nsidc.org)
Primary biological aerosol particle (PBAPs) have a distinctive role because they initiate both cloud droplets and, at remarkably warm sub-zero temperatures, ice crystals. (lu.se)

That's a big deal because many measurements of the thickness of the Greenland Ice Sheet are based on researchers measuring the elevation of the surface of the ice. (popsci.com)
And by taking many different measurements across Greenland, researchers can build up a picture of how much ice is being lost over time. (popsci.com)
A helicopter and researchers help provide a much needed size perspective on the massive sheet of ice. (popsci.com)
The researchers looked at two models of the Greenland ice sheet that include some of the important feedbacks. (spacedaily.com)
Our analysis suggests that the benefits of reducing greenhouse gas emissions, in terms of avoided sea level rise from the Greenland Ice Sheet, may be greatest if emissions reductions begin before large temperature increases have been realized," the researchers state in a recent issue of Climate Dynamics. (spacedaily.com)
Researchers told Reuters that they expect the record to be beaten by the end of month, well over a week before the melt season ends in the frozen north. (mongabay.com)
But researchers say sea ice extent could fall below 4 million square kilometers (1.5 million square miles) this year if current melt trends continue. (mongabay.com)
Predictions once focused on sea ice disappearing for a time in the summer by 2100, then it was 2050 or 2040, and now some researchers say sea ice could disappear before the end of the decade. (mongabay.com)
Now, Environment Canada researchers, in a study published in Geophysical Research Letters , have put a number on the sea-ice melt that reduced emissions of sulfur dioxide (and certain other aerosols , tiny particles that are suspended in the atmosphere) are expected to cause: about 400,000 square miles or 1 million square kilometers. (adn.com)
Ice shelves hold glaciers together and slow their flow into the ocean, which can add to sea-level rise, so researchers want to better understand how canyons like these form and affect their stability. (axios.com)
However, the researchers point out the shelf's thinning is likely to change in response to the uneven melting. (axios.com)
ScienceDaily (Aug. 25, 2011) - USGS Alaska Science Center researchers, in cooperation with the Native Village of Point Lay, will attempt to attach 35 satellite radio-tags to walruses on the northwestern Alaska coast in August as part of their ongoing study of how the Pacific walrus are responding to reduced sea ice conditions in late summer and fall. (earthscape.org)
Polar ice is melting at an unprecedented rate and accounts for a quarter of all sea level rise, researchers say. (echo.net.au)
Over the weekend, a picture taken by Danish climate researchers showing sled dogs on the ice in northwest Greenland with their paws in melted ice water was widely shared on social media. (peoplesworld.org)
As the ice-breaker Odin set sail on the 7th of May, MERGE-researchers Luisa Ickes, Lovisa Nilsson and Nicolas Faure were on it! (lu.se)

Bottom blue line represents sea ice extent as of August 13th, tracking well below the record set in 2007. (mongabay.com)
Sea ice extent in the Arctic is very near to beating the previous record low set in 2007, according to the U.S. National Snow and Ice Data Center . (mongabay.com)
In 2007 the sea ice extent fell to a record nadir of 4.28 million square kilometers (1.66 million square miles), astonishing experts and prompting a second look on how quickly sea ice might disappear from the Arctic altogether during the summer. (mongabay.com)
Interplay between ocean circulation, sea ice extent, ice shelf cover and the iceberg's mechanical action on the sea bed seem to determine the characteristics of some key planktonic and benthic communities. (mongabay.com)
In 1979, when satellites first measured it, September Arctic sea ice extent was roughly equivalent to the area of Australia. (skepticalscience.com)
Contrarians claim Arctic sea ice has "recovered" since the record low extent of 2007. (skepticalscience.com)
They found that for a sea ice extent decrease of 100,000 km2 -- or 38,610 square miles -- the percentage of Arctic sourced moisture increases by 18.2 percent and 10.8 percent, respectively, in the Canadian Arctic and Greenland Sea regions. (sciencedaily.com)
Beginning on August 20, surface melt extent on the ice sheet increased rapidly, following a period when only 10 to 20 percent of the ice sheet melted in the second half of July (Figure 1a). (nsidc.org)
Historical periods that show a decrease in summertime sea ice extent in the Arctic, such as the late 1930's and 1940's, are smaller in magnitude than the current downward-trending period. (theweathernetwork.com)
Now, in 2016, although the summer melt slowed throughout the first half of July (after a record-low month of June), the month came in with the third lowest extent on record. (theweathernetwork.com)
If the trend over the latter half of July and the first week in August persists, this year's melt could - at the very least - result in the second lowest ice extent on record. (theweathernetwork.com)
As we will see in this post, Christy once again misrepresented the body of scientific literature with regards to Arctic sea ice extent in his efforts to paint the Arctic sea ice death spiral as nothing out of the ordinary. (skepticalscience.com)
Christy's comments to Leake via email slightly differed from Leake's paraphrasing, as Christy claimed that evidence suggests summer melts during 1938-43 were "very low extent. (skepticalscience.com)
This begs the obvious question - in the scientific literature, how does Arctic sea ice extent during the period 1938-43 compare to the rest of the 20th Century and current levels? (skepticalscience.com)
One of the most widely used long-term estimates of Arctic sea ice extent comes from Walsh and Chapman (2001) , whose data are available from the University of Illinois (updated through 2008). (skepticalscience.com)
Figure 1: Average July through September Arctic sea ice extent 1870-2008 from the University of Illinois (Walsh & Chapman 2001 updated to 2008) and observational data from NSIDC for 2009-2011 (blue), with a fourth order polynomial fit (black soiid line). (skepticalscience.com)
Clearly the extent of Arctic sea ice during 1938-43 was nowhere near as low as current levels, based on these data. (skepticalscience.com)
In other words, Arctic sea ice extent has been lower than it was in 1938-43 during the entire satellite record, and the current average summer extent is approximately 4.3 million square kilometers lower than the 1940 minimum. (skepticalscience.com)
It's true that according to this dataset, 1940 was a local minimum - the lowest Arctic sea ice extent of the 20th Century up to that point, and a minimum that was not repeated again for another 20 years. (skepticalscience.com)
In that sense one could argue that Arctic sea ice extent at least in 1940 was "very low" compared to the early and mid 20th Century, but compared to the past 20 years it was actually very high. (skepticalscience.com)

There would be slower storms as a result of this pattern, and as a result, instead of just moving on by not causing so much grief, you can get huge amounts of snow and ice dumped on us here, and not only here, also in Russia. (nhpr.org)
But now we recognize a second serious problem: Increasingly, large amounts of ice mass are going to leave as meltwater, as rivers that flow into the sea. (newswise.com)

Meltwater flowing into the oceans from the Greenland Ice Sheet can contribute to sea level rise. (popsci.com)
This image shows a portion of the edge of the Greenland Ice Sheet. (spacedaily.com)
If all the ice in the Greenland Ice Sheet melts, global sea level would rise by about 24 feet. (spacedaily.com)
Floating ice does not add to sea level, but the Greenland Ice Sheet rests on bedrock that is above sea level. (spacedaily.com)
Other feedbacks in the Greenland Ice Sheet that contribute to melting include height-melting feedback. (spacedaily.com)
Both the three-dimensional and transect models showed that the time necessary for ice mass loss from the Greenland ice sheet decreases steeply with increases in temperature. (spacedaily.com)
Observers have seen lakes on the Greenland ice sheet drain at the speed of Niagara Falls. (sciencedaily.com)
Right now, the center of the Greenland ice sheet is frozen to the rocks," says Alley. (sciencedaily.com)
The Greenland ice sheet is losing mass at an accelerating rate . (skepticalscience.com)
The Greenland ice sheet situation IS reversible. (lifeboat.com)
They've cored it to bedrock and found that 12,000 years ago there was no such thing as a Greenland ice sheet. (lifeboat.com)
The Daily Melt image (left) shows where the surface of the Greenland Ice Sheet showed melt on that day. (nsidc.org)
Get daily satellite images and information about melting on the Greenland ice sheet. (nsidc.org)
The first map of the underside of the Greenland ice sheet. (theweathernetwork.com)

The remaining new ice is thinner and much easier to melt than older ice. (skepticalscience.com)
And what happens also is the Arctic ice has been getting thinner over the years. (nhpr.org)
The Arctic, what we've seen is the ice getting thinner up there. (nhpr.org)
The ice now leaving the Arctic through the Fram Strait is, on average, 30 percent thinner than it was 15 years ago," he said. (yale.edu)

Melt area peaked at nearly 730,000 square kilometers (282,000 square miles) on August 22, covering about 45 percent of the ice sheet (Figure 1b). (nsidc.org)
Cumulative melt-day area is the second highest in the 45-year satellite record with over 30 million square kilometers (11.5 million square miles). (nsidc.org)

What's the Difference Between a Glacier and an Ice Floe? (britannica.com)
When asked about the length of time left to protect the Arctic marine wildlife, McWhinnie said predictions are difficult because of the increased ice floe melt and data provided by different models. (cbc.ca)

Pets can develop dryness and irritation on their paws and skin if they walk through ice melting chemicals. (poison.org)
Wash pets' paws after exposure to ice melting chemicals. (poison.org)

Data from these satellites showed that between 2002 and 2016, Greenland lost approximately 280 gigatons of ice per year , equivalent to 0.03 inches of sea level rise each year. (newswise.com)

Crystals and granules intended to melt ice and snow keep walkways safe. (poison.org)

Poison Control gets many calls about children who put ice melting crystals into their mouths. (poison.org)
growth of ice crystals to form snow ('ice crystal process'), which may rime to form graupel/hail or may fall out as 'cold' precipitation. (lu.se)
Clouds consist of vast numbers of cloud droplets and ice crystals suspended in the air. (lu.se)

The North Atlantic Oscillation is a natural-if erratic-cycle that causes ice to melt under normal circumstances. (newswise.com)

The new study, published in Nature Communications, found that the cause of this gain in freshwater concentration is the loss of sea ice in summer and autumn. (nasa.gov)
Arctic summer sea ice has shrunk by an area equal to Western Australia, and might be all gone in a decade. (skepticalscience.com)
Snow and glaciers are important for the availability of water, especially in summer when the water retained gradually melts. (europa.eu)
This unusually late summer melt event was caused by a high and low air pressure configuration known as an omega pattern because of its jet stream shape. (nsidc.org)
That melting, which Bevis and his co-authors believe is largely caused by global warming, means that in the southwestern part of Greenland, growing rivers of water are streaming into the ocean during summer. (newswise.com)
And without new sea ice to replenish the region's more stable, older ice, "the world is one major step closer to a sea-ice-free summer in the Arctic," warned Thomas Krumpen, a sea-ice physicist at the Alfred Wegener Institute in Germany and lead author of the new study. (yale.edu)
In north-western Germany, there were forests, containing warmth-demanding trees early in MIS 3, indicating a summer climate only slightly cooler than at present, thus supporting the evidence that the adjacent ice sheets had melted. (lu.se)
The icebreaker Oden sails between Svalbard and Greenland, and this spring, doctoral student Lovisa Nilsson, and a member of MERGE, joined the ship to study the transition from winter to summer in the Arctic, and how soot affects the melting of sea ice. (lu.se)

The melting of sea ice will significantly increase Arctic precipitation, creating a climate feedback comparable to doubling global carbon dioxide, a new study finds. (sciencedaily.com)
Global climate is influenced by the Arctic water cycle, which is partly regulated by sea ice through its control on evaporation and precipitation. (sciencedaily.com)
Direct measurement of precipitation is difficult in the Arctic because of its cold, windy environments, so the quantitative link between precipitation and sea ice is poorly understood. (sciencedaily.com)
They then used these empirically established sensitivities of precipitation isotopes to sea ice change to project future precipitation changes and to evaluate impacts of these changes on the energy balance. (sciencedaily.com)
But if the increased precipitation falls as rain, it would cause earlier spring melt and/or later onset of autumn snow coverage, a longer low reflectivity period and additional warming. (sciencedaily.com)
We show that the loss of sea ice will likely increase precipitation, which will impact communities and ecosystems around the Arctic. (sciencedaily.com)
We have discovered that the ice crystal process produces most of the precipitation at middle latitudes, but that the warm rain process prevails in the tropics. (lu.se)

The unconfined ice sheet does not reach the sea along a broad front anywhere in Greenland, and no large ice shelves occur. (britannica.com)
When ice shelves -- ice still connected to the ice sheet but floating over water -- melt, they also cause the ice sheet to flow faster. (sciencedaily.com)
Rocks and cliffs on the sides of fiords or inlets slow the seaward movement of the ice shelves. (sciencedaily.com)
If these shelves break up and melt, the ice streams behind them move more rapidly. (sciencedaily.com)
Water temperature is more important than air temperature in melting the ice shelves," says Alley. (sciencedaily.com)
The breakup of these ice shelves opened up huge, near pristine portions of the ocean floor, sealed off from above for at least 5,000 years, and possibly up to 12,000 years in the case of Larsen B," said Julian Gutt, a marine ecologist at Germany's Alfred Wegener Institute for Polar and Marine Research and chief scientist on the Polarstern expedition. (mongabay.com)
The Southern Ocean spans 35 million square km - 10% of Earth's ocean surface, and ice shelves cover 1.5 million square km of it," added Tarik Chekchak, Program Manager of the Cousteau Society. (mongabay.com)
Ice shelves are thick, floating platforms of ice formed when glaciers flow from the land onto the ocean surface. (skepticalscience.com)
Several ice shelves have collapsed completely ,including one covering 3,250 km 2 , almost twice the area of urban Sydney. (skepticalscience.com)
When ice shelves lose mass, they lose the ability to hold back inland glaciers from their march to the sea, meaning those glaciers can accelerate and thin as a result of the acceleration. (commondreams.org)

This decades-long decline of the Arctic's summertime sea ice cover has left the Beaufort Gyre more exposed to the wind, which spins the gyre faster and traps the fresh water in its current. (nasa.gov)
Global atmospheric warming enhances summertime melting, especially in the southwest. (newswise.com)
This causes increased absorption of solar radiation and excess summertime heating of the ocean -- further accelerating the ice melt. (eponline.com)

Arctic sea ice, when it exists, reflects the sun's energy back through the atmosphere, but when the sea ice melts and there is open water, the water absorbs the sun's energy and reradiates it back into the air as heat. (spacedaily.com)
Although those who study ice sheets have long modeled ice sheet behavior, simulations of the whole earth system typically have not included ice sheets along with the atmosphere, oceans and clouds, in their models. (sciencedaily.com)
The climate we experience results from and is mediated by the action of a host of processes in the atmosphere, soils, oceans, and snow and ice components. (lu.se)

Sea ice is simply frozen ocean water. (grida.no)
The toxic legacy of a top-secret Cold War U.S. military base is coming to the surface in Greenland - exposing state secrets frozen in ice. (cbc.ca)
Areas shaded blue on the map are those where the ice is firmly in contact with the bedrock below, thus frozen in place. (theweathernetwork.com)

Large outlet glaciers, which are restricted tongues of the ice sheet, move through bordering valleys around the periphery of Greenland to calve off into the ocean , producing the numerous icebergs that sometimes penetrate North Atlantic shipping lanes. (britannica.com)
The study examined more than two decades' worth of data on 'mass balance' of glaciers in the Amundsen Sea Embayment--including 'how much ice the glaciers gain and lose over time from accumulating or melting snow, discharges of ice as icebergs, and other causes'--between 1992 and 2013. (commondreams.org)
Icebergs calving from the Dotson Ice Shelf in 2010. (axios.com)

Arctic sea ice was photographed in 2011 during NASA's ICESCAPE mission, or "Impacts of Climate on Ecosystems and Chemistry of the Arctic Pacific Environment," a shipborne investigation to study how changing conditions in the Arctic affect the ocean's chemistry and ecosystems. (nasa.gov)

If emissions continue to grow, the melting of these ice sheets could lead to the sea level rising by metres over the next centuries, even with only a partial melt down. (europa.eu)
That's the amount of ice melt, according to the study's calculation, that's likely to be attributable to reductions of human-caused emissions of sulfur dioxide and similar light-reflecting air pollutants by the end of the century. (adn.com)
That figure will account for 25 to 40 percent of the expected seasonal sea-ice melt, depending on future emissions of carbon dioxide and other greenhouse gases, the study says. (adn.com)

Graph courtesy of U.S. National Snow and Ice Data Center. (mongabay.com)
Mark Serreze, Director of the US National Snow and Ice Data Center, says we're " looking at a seasonally ice-free Arctic in twenty to thirty years . (skepticalscience.com)
Melting of snow and ice in remote areas like the Arctic will also affect Europe. (europa.eu)
For references , please go to https://www.eea.europa.eu/highlights/europeans-hit-by-melting-snow-and-ice or scan the QR code. (europa.eu)
Police speculated that they must have fallen down a crevasse, snow and ice enveloping their bodies, until the warming air on the shrinking glacier finally uncovered their resting place almost 75 years later. (mentalfloss.com)
But eruptions can also have the opposite effect, hastening the melt of glaciers or sea ice by spreading dark, solar heat-absorbing ash on snow and ice. (adn.com)
As winter weather gives way to spring, communities across Wisconsin are dealing with the stark reality that significant snow and ice melt is leading to increased risk of extreme flooding. (wpr.org)
Soot on snow and ice in the Arctic makes the ground blacker and more likely to absorb sunshine, which means that the ice melts more quickly. (lu.se)

A warm year in Greenland causes more melt around the edges of the ice sheet, lowering the surface. (spacedaily.com)
Thanks to a rapid rebound in recent months, global sea ice levels now equal those seen 29 years ago, when the year 1979 also drew to a close. (skepticalscience.com)
In fact, they are shedding roughly 91.5 billion tons of ice every year at a rate which grew by an average of 6.7 billion tons annually since 1992. (commondreams.org)
In this equation, more ice flows to sea every year and sea level rises. (commondreams.org)
Behold, the team that brought you the " not-melting popsicles " last year just launched two new creations. (forbes.com)
Over the last 50 years, as the glacier has receded, the trees and stumps have slowly been uncovered, and in recent years as the melt has sped up-shrinking at a rate of 170 feet per year since 2005-more and more of this ancient woodland has been revealed. (mentalfloss.com)
Earlier in 2013, an amazingly well-preserved 1700-year-old woollen tunic was also rescued from melting ice in the region-two patches on the garment showed that it had been carefully mended by its Iron Age owner. (mentalfloss.com)
The bodies of a 13-year-old girl, plus a boy and girl both about four or five years old, were found at 22,000 feet up, and are considered the best-preserved ice mummies in the world . (mentalfloss.com)
The Cumulative Melt Days image (right) shows the total number of days that melt occurred, year to date. (nsidc.org)
What the end result shows is that the current loss of sea ice from the Arctic is unprecedented in the entire 166 year record! (theweathernetwork.com)
The record Arctic sea ice decline this year has predictably and deservedly received a fair amonut of media attention. (skepticalscience.com)

A major ocean current in the Arctic is faster and more turbulent as a result of rapid sea ice melt, a new study from NASA shows. (nasa.gov)

We do not think that we will lose all, or even most, of Antarctica's ice sheet," said Alley. (sciencedaily.com)
The rate of melting ice in Antarctica's vulnerable Amundsen Sea region has tripled in the past decade, a new report published in Geophysical Research Letters on Wednesday has found. (commondreams.org)

Arctic sea ice coverage has decreased over the last few decades, and that decrease will probably continue in the future, leading to accelerated temperature rise over Greenland. (spacedaily.com)
The effects of the resulting stronger greenhouse effect are already manifesting themselves in increased global temperature, melting sea ice and glaciers, rising sea levels, and other trends. (lu.se)

If the melt water moves inland as the world warms and gets to the bottom, it will thaw the bottom and unstick the ice from the rocks. (sciencedaily.com)
It had to be the surface mass-the ice was melting inland from the coastline. (newswise.com)

The Arctic has few sources of pollution, but polluted air that moves to the Arctic from other parts of the world increases the amount of soot particles that affect the melting process. (lu.se)

While sulfur dioxide is among the type of aerosols that reflect sunlight away from Earth, others, notably black carbon , absorb it and speed melt of ice and snow. (adn.com)

In contrast, the Eurasian ice sheets contributed only about 30% to the sea-level drop from MIS 3 to MIS 2, meaning that the North American ice sheets during that period expanded strongly. (lu.se)

The study, which will be published in the journal of Ocean and Coastal Management next month, says warming weather conditions in the Arctic are already changing the amount and thickness of the Arctic ice. (cbc.ca)
The study concludes that the current downward trend in sea ice has no precedent in duration or scale of ice loss since 1850. (theweathernetwork.com)

During cold periods in the Earth's history, ice starts building up on land. (popsci.com)

Greenland is mostly covered by this single large ice sheet (1,730,000 square kilometres), while isolated glaciers and small ice caps totaling between 76,000 and 100,000 square kilometres occur around the periphery . (britannica.com)
The ice sheet is almost 2,400 kilometres long in a north-south direction, and its greatest width is 1,100 kilometres at a latitude of 77° N, near its northern margin. (britannica.com)
Set your time machine to fast-forward through the next few centuries, and watch as the great ice sheet above you slowly melts and spills into the sea. (newscientist.com)
The reasoning is if the ice is taller than it was last time measurements were taken, then the ice sheet is growing. (popsci.com)
If it's shorter, than the ice sheet is shrinking. (popsci.com)
The first model is a three-dimensional ice sheet model. (spacedaily.com)
If the ice sheet on Greenland melts, sea level will rise about 23 feet, which will inundate portions of nearly all continental shores. (sciencedaily.com)
This water, by wedging open a crack or crevasse in the ice, quickly flows through to the bottom, melting the bottom of the ice sheet and causing it to move more rapidly toward the ocean. (sciencedaily.com)
An ice sheet is a huge layer of land ice. (skepticalscience.com)
According to Velicogna, glacier and ice sheet behavior around the globe is the greatest uncertainty in predicting future sea levels. (commondreams.org)
This issue does not affect trends for the entire ice sheet. (nsidc.org)
We are working to improve the ice sheet mask. (nsidc.org)
Melting began in the southwest and spread toward the higher central areas of the ice sheet and northward on August 22, and then eastward on August 23 and beyond (Figure 1c). (nsidc.org)
We are watching the ice sheet hit a tipping point. (newswise.com)
The red-shaded regions are those where the bottom of the ice sheet has melted, due to being in contact with bedrock that goes through enough geothermal heating to stay above the freezing mark. (theweathernetwork.com)
We describe glaci-lacustrine sediments buried under thick tills in Folldalen, south-east Norway, a site located close to the former centre of the Scandinavian Ice Sheet. (lu.se)
Thus, the location implies that the ice sheet had melted when the sediments were deposited. (lu.se)
We conclude that the Scandinavian Ice Sheet melted almost completely away early in Marine Isotope Stage (MIS) 3. (lu.se)

The climate crisis is melting Greenland down at an unprecedented rate, which - in a twist of irony - is creating an opportunity for investors and mining companies who are searching for a trove of critical minerals capable of powering the green energy transition . (cnn.com)
Greenland is still a very icy place, and contains a lot of ice that could raise sea levels much further if they continue to melt at an accelerated rate. (popsci.com)
Sea ice is declining at an alarming rate, so it is important to understand the consequences of the climate feedbacks caused by these changes," Kopec says. (sciencedaily.com)
It is of course widely accepted that the Greenland icesheet is melting at an alarming rate, accelerating, and is an irreversible process, and when it finally does melt will contribute to a rise in sea levels globally by 7 meters. (lifeboat.com)
But the rate of ice loss across the island was far from steady. (newswise.com)
The patterns they found show an alarming trend-by 2012, ice was being lost at nearly four times the rate that prevailed in 2003. (newswise.com)
If the uneven melting continued at its current rate, the canyon could melt through in 40 - 50 years rather than 170 - 200 years predicted for even melting. (axios.com)

With the exception of the Bering Sea, none of the areas have seen sea ice extents as low as in the past decade. (theweathernetwork.com)

As the ice sheets melt, there will not only be more water in the oceans, but the positions of those hills and valleys will shift. (newscientist.com)
Although lots of people have thought about sea level rise from the ice sheets, we don't really know how fast that will happen," said Patrick Applegate, research associate, Penn State's Earth and Environmental Systems Institute. (spacedaily.com)
Another form of feedback occurs because ice sheets are large masses that want to spread. (spacedaily.com)
All ice sheets spread due to their large mass, but friction from the rocks beneath slows the ice's motion. (sciencedaily.com)
Another contributor to the melting ice sheets is the warming of the ocean. (sciencedaily.com)
Past atmospheric modelers usually treated the ice sheets simply as white mountains. (sciencedaily.com)
Sea ice floats on the ocean surface, and is not to be confused with ice sheets on land. (skepticalscience.com)
Looking at the tops of the ice sheets or at the edges of the glaciers isn't enough though. (theweathernetwork.com)
Did the Eurasian ice sheets melt completely in early Marine Isotope Stage 3? (lu.se)
Our review shows that the other Eurasian ice sheets also disappeared in that period. (lu.se)
The melting of the Eurasian ice sheets contributed to 50-100% of the sea-level rise from MIS 4 to MIS 3, implying that the much larger North American ice sheets did not melt much. (lu.se)
Weichselian}}, language = {{eng}}, publisher = {{Elsevier}}, series = {{Quaternary Science Reviews}}, title = {{Did the Eurasian ice sheets melt completely in early Marine Isotope Stage 3? (lu.se)
Ice sheets, snow and the ocean as far as the eye can see. (lu.se)

The melting ice could, in turn, lead to changes in how nutrients and organic material in the ocean are mixed, significantly affecting the food chain and wildlife in the Arctic. (nasa.gov)
What you're seeing is more open ocean than you're seeing ice," he said. (mongabay.com)
This unprecedented ice loss is occurring because warm ocean water is rising from below and melting the base of the glaciers , dumping huge volumes of additional water - the equivalent of a Mt. Everest every two years - into the ocean. (livescience.com)
A southern elephant seal has been pressed into service as an all-weather submersible to investigate and record data from the polynya system of the southern ocean sea ice. (nationofchange.org)
It forms, grows, and melts in the ocean. (grida.no)

The mean altitude of the ice surface is 2,135 metres. (britannica.com)
The ice surface reaches its greatest altitude on two north-south elongated domes, or ridges. (britannica.com)
Sea ice has a bright surface, so much of the sunlight that strikes it is reflected back into space. (grida.no)
This is a false melt signal from seasonal snow and patchy ice areas, where our method of determining surface melting does not work. (nsidc.org)
MacFerrin told The Current , it's just a matter of time until the melt 'reaches the surface and starts running off toward the coast,' seeing as North Greenland and the other parts of the Arctic are warming twice as fast as the rest of the world. (cbc.ca)

The thick gray line depicts the average daily melt area for 1981 to 2010. (nsidc.org)

Water beneath the ice allows the ice to move more rapidly. (sciencedaily.com)
But sea ice exists in three dimensions , and it has continued to thin rapidly. (skepticalscience.com)
The biggest surprise: This acceleration was focused in southwest Greenland, a part of the island that previously hadn't been known to be losing ice that rapidly. (newswise.com)

The interplay between the height-melting feedback and ice flow causes this acceleration. (spacedaily.com)

While the increased turbulence has helped keep the system balanced, it has the potential to lead to further ice melt because it mixes layers of cold, fresh water with relatively warm, salt water below. (nasa.gov)

Shorter time scales -- faster melting -- imply faster sea level rise. (spacedaily.com)

IMHO worst case scenario would be a rapid acceleration in the time scale of the Greenland ice melt. (lifeboat.com)

While the sea ice melt heralds vast climatic changes worldwide, many Arctic governments have seen it as an opportunity to exploit the untouched fossil fuel resources of the Arctic. (mongabay.com)

Reports of melting polar ice caps, rising sea levels, and weather changes have become staples of nightly news broadcasts. (medscape.com)

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