Current Greenland News and Events

Current Greenland News and Events, Greenland News Articles.
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'Missing ice problem' finally solved
During glacial periods, the sea level falls, because vast quantities of water are stored in the massive inland glaciers. To date, however, computer models have been unable to reconcile sea-level height with the thickness of the glaciers. (2021-02-23)

'Problem of missing ice' finally solved by movement of the earth's crust
An international team of scientists published a study in Nature Communications today. This new reconstruction revolutionizes what is thought about the global continental ice mass during the Last Ice Age. (2021-02-23)

CO2 dip may have helped dinosaurs walk from South America to Greenland
A new study identifies a climate phenomenon that may have helped sauropodomorphs spread northward across the Pangea supercontinent. (2021-02-15)

Rapid ice retreat during last deglaciation parallels current melt rates
Imagine an ice chunk the size of Hawaii disappearing, almost instantaneously, from an ice sheet. That is what happened in the Storfjorden Through in the Arctic Ocean some 11,000 years ago. (2021-02-10)

Potentially toxic plankton algae may play a crucial role in the future Arctic
As the sea ice shrinks in the Arctic, the plankton community that produces food for the entire marine food chain is changing. New research shows that a potentially toxic species of plankton algae that lives both by doing photosynthesis and absorbing food may become an important player in the Arctic Ocean as the future sea ice becomes thinner and thinner. (2021-02-03)

The Arctic Ocean was covered by a shelf ice and filled with freshwater
Scientists from Alfred Wegener Institute: ''We need to have a fresh look at the role of the Arctic Ocean.'' (2021-02-03)

Arctic shrubs add new piece to ecological puzzle
A 15-year experiment on Arctic shrubs in Greenland lends new understanding to an enduring ecological puzzle: How do species with similar needs and life histories occur together at large scales while excluding each other at small scales? Its findings also reveal trends related to carbon sequestration and climate change as the Arctic becomes both greener and browner. (2021-02-01)

Arctic warming and diminishing sea ice are influencing the atmosphere
Researchers of the Institute for Atmospheric and Earth system research at the University of Helsinki have resolved for the first time, how the environment affects the formation of nanoparticles in the Arctic. The results give additional insight into the future of melting sea ice and the Arctic atmosphere. Until recent studies, the molecular processes of particle formation in the high Arctic remained a mystery. (2021-01-29)

Global ice loss increases at record rate
The rate at which ice is disappearing across the planet is speeding up, according to new research. And the findings also reveal that the Earth lost 28 trillion tonnes of ice between 1994 and 2017 - equivalent to a sheet of ice 100 metres thick covering the whole of the UK. (2021-01-25)

Microbes fuelled by wind-blown mineral dust melt the Greenland ice sheet
Scientists have identified a key nutrient source used by algae living on melting ice surfaces linked to rising sea levels. They discovered that phosphorus containing minerals may be driving ever-larger algal blooms on the Greenland Ice Sheet. (2021-01-25)

Increasing ocean temperature threatens Greenland's ice sheet
Scientists at the University of California, Irvine and NASA's Jet Propulsion Laboratory have for the first time quantified how warming coastal waters are impacting individual glaciers in Greenland's fjords. Their work, the subject of a recent Science Advances study, can help climate scientists better predict global sea level rise from the increased melting. (2021-01-25)

No insect crisis in the Arctic - yet
No insect crisis in the Arctic - yet. Climate change is more pronounced in the Arctic than anywhere else on the planet, raising concerns about the ability of wildlife to cope with the new conditions. A new study shows that rare insects are declining, suggesting that climatic changes may favour common species. (2021-01-18)

Micro-climate moulds and reshapes northern insect communities, herbivory and predation
Climate and changes in it have direct impacts on species of plant and animals - but climate may also shape more complex biological systems like food webs. Now a research group from the University of Helsinki has investigated how micro-climate shapes each level of the ecosystem, from species' abundances in predator communities to parasitism rates in key herbivores, and ultimately to damage suffered by plants. The results reveal how climate change may drastically reshape northern ecosystems. (2021-01-14)

Greenland melting likely increased by bacteria in sediment
Bacteria are likely triggering greater melting on the Greenland ice sheet, possibly increasing the island's contribution to sea-level rise, according to Rutgers scientists. That's because the microbes cause sunlight-absorbing sediment to clump together and accumulate in the meltwater streams, according to a Rutgers-led study - the first of its kind - in the journal Geophysical Research Letters. The findings can be incorporated in climate models, leading to more accurate predictions of melting, scientists say. (2021-01-14)

New study of Earth's crust shows global growth spurt three billion years ago
Curtin University researchers have used ancient crystals from eroded rocks found in stream sediments in Greenland to successfully test the theory that portions of Earth's ancient crust acted as 'seeds' from which later generations of crust grew. (2021-01-12)

A bucket of water can reveal climate change impacts on marine life in the Arctic
We know very little about marine life in the Arctic. Now researchers from the University of Copenhagen, among others, are trying to change that. They have shown that a simple water sample makes it possible to monitor the presence, migration patterns and genetic diversity of bowhead whales in an otherwise hard-to-reach area. The method can be used to understand how climate changes and human activities impact life in the oceans. (2021-01-12)

Ancient DNA analysis reveals Asian migration and plague
Ancient DNA reveals a history of migrations, continuity, and diseases in northeastern Asia. (2021-01-07)

NASA finds what a glacier's slope reveals about Greenland Ice Sheet thinning
As glaciers flow outward from the Greenland Ice Sheet, what lies beneath them offers clues to their role in future ice thinning and sea-level rise contribution. (2020-12-18)

Greenland 'knickpoints' could stall spread of glacial thinning
The jagged terrain of Greenland's mountains is protecting some of the island's outlet glaciers from warm coastal waters, according to a team of researchers that included scientists from The University of Texas at Austin and NASA. However, in regions where the flat bedrock offers no such protection, runaway thinning can reach far into the ice sheet and eat away at previously unaffected ice and contribute to sea level rise. (2020-12-17)

Biologists clarify how three species of cephalopods coexist in the Arctic
By analyzing the content of stable heavy isotopes of carbon (δ13C) and nitrogen (δ15N) in the beaks, the researchers studied three closely related cephalopod species: the highly boreal Rossia megaptera, the wide-boreal-Arctic Rossia palpebrosa, and the Arctic endemic Rossia moelleri, which are sympatric in the Arctic. (2020-12-15)

The melting of the Greenland ice sheet could lead to a sea level rise of 18 cm in 2100!
A new study, headed by researchers from the Universities of Liège and Oslo, applying the latest climate models, of which the MAR predicts a 60% greater melting of the Greenland ice sheet than previously predicted. Data that will be included in the next IPCC report. This study is published in Nature Communications. (2020-12-15)

Newly discovered Greenland plume drives thermal activities in the Arctic
A team of researchers understands more about the melting of the Greenland ice sheet. They discovered a flow of hot rocks, known as a mantle plume, rising from the core-mantle boundary beneath central Greenland that melts the ice from below. (2020-12-07)

The climate changed rapidly alongside sea ice decline in the north
Researchers from the Niels Bohr Institute, University of Copenhagen have, in collaboration with Norwegian researchers in the ERC Synergy project, ICE2ICE, shown that abrupt climate change occurred as a result of widespread decrease of sea ice. This scientific breakthrough concludes a long-lasting debate on the mechanisms causing abrupt climate change during the glacial period. It also documents that the cause of the swiftness and extent of sudden climate change must be found in the oceans. (2020-12-04)

Greenland ice sheet faces irreversible melting
Scientists predict Greenland ice sheet will pass a threshold beyond which it will never fully regrow and sea levels will be permanently higher in as little as 600 years under current climate change projections, as Greenland's climate would be permanently altered as the ice sheet shrinks. (2020-12-02)

New light on polar explorer's last hours
Chemical analyzes of a black spot in a diary shed new light on the destiny and tragic death of legendary Inuit polar expedition member Jørgen Brønlund in Northeast Greenland in 1907. (2020-11-24)

New clues shed light on importance of Earth's ice sheets
Researchers examining subglacial waters both from Antarctica and Greenland found that these waters have higher concentrations of important, life-sustaining elements than previously thought, answering a big unknown for scientists seeking to understand the Earth's geochemical processes. (2020-11-23)

A rich source of nutrients under the Earth's ice sheets
Trace elements such as iron and zinc are essential micronutrients for all kinds of organisms. Below ice sheets, which cover around ten percent of the Earth's land surface, larger quantities of these substances are mobilised than previously assumed. This is shown by new data from Greenland and Antarctica, which were collected and analysed by an international research team led by Jon Hawkings from the GFZ German Research Centre for Geosciences and Florida State University (USA). (2020-11-23)

Holes in Greenland ice sheet are larger than previously thought, study finds
Expedition finds that holes in the Greenland ice sheet, called moulins, are much larger than previously thought. (2020-11-17)

Possible 1,000-kilometer-long river running deep below Greenland's ice sheet
Computational models suggest that melting water originating in the deep interior of Greenland could flow the entire length of a subglacial valley and exit at Petermann Fjord, along the northern coast of the island. Updating ice sheet models with this open valley could provide additional insight for future climate change predictions. (2020-11-12)

Landslide along Alaskan fjord could trigger tsunami
Scientists noted that the slope on Barry Arm fjord on Prince William Sound in southeastern Alaska slid some 120 meters from 2010 to 2017, a slow-moving landslide caused by glacial melt that could trigger a devastating tsunami. These are some of the first measurements to quantify how the slope is falling there; the study also models a potential tsunami. (2020-11-12)

Scientists have discovered an ancient lake bed deep beneath the Greenland ice
Scientists have detected what they say are the sediments of a huge ancient lake bed sealed more than a mile under the ice of northwest Greenland--the first-ever discovery of such a sub-glacial feature anywhere in the world. (2020-11-10)

Half a billion years old microfossils may yield new knowledge of animal origins
When and how did the first animals appear? Science has long sought an answer. Uppsala University researchers and colleagues in Denmark have now jointly found, in Greenland, embryo-like microfossils up to 570 million years old, revealing that organisms of this type were dispersed throughout the world. The study is published in Communications Biology. (2020-11-09)

Ice loss due to warming leads to warming due to ice loss: a vicious circle
The loss of huge ice masses can contribute to the warming that is causing this loss and further risks. A new study now quantifies this feedback by exploring long-term if-then-scenarios. (2020-10-27)

Coastal Greenland reshaped as Greenland ice sheet mass loss accelerates
Ice loss from the Greenland Ice Sheet has accelerated significantly over the past two decades, transforming the shape of the ice sheet edge and therefore coastal Greenland. (2020-10-27)

Volcanic eruptions may explain Denmark's giant mystery crystals
Researchers have long been stumped for an explanation of how tens of millions of years-old giant crystals known as glendonites came to be on the Danish islands of Fur and Mors. A recent study from the University of Copenhagen offers a possible explanation to the conundrum: major volcanic eruptions resulted in episodes of much cooler prehistoric climates than once thought. (2020-10-14)

Recent Atlantic ocean warming unprecedented in nearly 3,000 years
Sediments from a lake in the Canadian High Arctic allow climate scientists to extend the record of Atlantic sea-surface temperature from about 100 to 2,900 years. It shows that the warmest interval over this period has been the past 10 years. A team led by Francois Lapointe and Raymond Bradley in the Climate System Research Center at UMass Amherst analyzed ''perfectly preserved'' annual layers of sediment that accumulated in the lake on Ellesmere Island, Nunavut Territory. (2020-10-14)

A tiny jaw from Greenland sheds light on the origin of complex teeth
A team of scientists led from Uppsala University have described the earliest known example of dentary bone with two rows of cusps on molars and double-rooted teeth. The new findings offer insight into mammal tooth evolution, particularly the development of double-rooted teeth. The results are published in the scientific journal PNAS. (2020-10-13)

UM researchers help study largest estimated Greenland ice loss
University of Montana researchers have contributed to a study forecasting significant ice loss in Greenland. According to the study just published in the journal Nature, Greenland will lose more ice this century than in the past 12,000 years if greenhouse gas emissions are not curbed. (2020-10-06)

Einstein's description of gravity just got much harder to beat
Astrophysicists put general relativity to a new test with black hole images. (2020-10-01)

Study: Greenland is on track to lose ice faster than in any century over 12,000 years
If human societies don't sharply curb emissions of greenhouse gases, Greenland's rate of ice loss this century is likely to greatly outpace that of any century over the past 12,000 years, a new study concludes. Scientists say the results reiterate the need for countries around the world to take action now to reduce emissions, slow the decline of ice sheets, and mitigate sea level rise. (2020-09-30)

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