Biggest-ever Arctic science mission ends after a year drifting along with frozen sea ice



a group of people standing on top of a snow covered mountain: Biggest-ever Arctic science mission ends after a year drifting along with frozen sea ice


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Biggest-ever Arctic science mission ends after a year drifting along with frozen sea ice

After a year spent drifting across the top of the world, frozen in sea ice, a German research ship returned home Monday, ending the largest Arctic science expedition in history, one aimed at better understanding a region that is rapidly changing as the world warms.

The ship, the Polarstern, docked at its home port of Bremerhaven nearly 13 months after it left Norway. In October, it became deliberately frozen into the ice north of Siberia, about 350 miles from the North Pole, and drifted north and west for thousands of miles, leaving the little remaining ice for good late last month between Greenland and Norway.

The expedition, with a rotating contingent of about 100 scientists, technicians and crew, encountered nosy polar bears, fierce storms that damaged equipment, changing ice conditions and, most

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After Year on Ice, the Biggest Arctic Research Mission Is Done

The Polarstern amidst Arctic sea ice.

The Polarstern amidst Arctic sea ice.
Photo: NOAA, University of Colorado, Boulder, and MOSAiC

The largest Arctic research campaign in history just came to a close. For more than a year, a rotating group of roughly 500 scientists and staffers have been traveling the region on a research vessel called the Polarstern as part of the Multidisciplinary drifting Observatory for the Study of Arctic Climate expedition, or MOSAiC.

The expedition began last September, when a team packed the ship with 1 million pounds of equipment and set off from Norway toward the North Pole. They then attached the vessel to an ice floe north of Siberia and let it carry them westward for thousands of miles. This allowed the multidisciplinary group of researchers to closely observe the Arctic’s air, ice, and ecosystems to learn more about them and their bearing on our changing climate.

The team studied everything from

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ICE responds to reports officer wore NYPD jacket, says the word police is a law enforcement symbol

Immigration and Customs Enforcement (ICE) is looking into reports that one of its officers wore an NYPD jacket that caused alarm for New York City residents, according to a report.

The agency said “police” is a “universally recognized symbol of law enforcement in most cultures.”

ICE PLANNING IMMIGRATION ENFORCEMENT OPERATIONS IN SANCTUARY CITIES

“ICE officers are sworn federal law enforcement officers who enforce U.S. immigration laws created by Congress to keep this country safe. The word ‘POLICE’ is a universally recognized symbol of law enforcement in most cultures, an important distinction given that many of the individuals with whom ICE interacts are not native English speakers. Given the inherently dangerous nature of ICE officers’ work, their ability to quickly establish their identity as sworn law enforcement personnel could potentially mean the difference between life and death.”

Brooklyn residents in Fort Greene protested in front of the 88th police precinct Sunday

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COVID and ice hockey: outbreaks chill Nordic national pastime

GOTHENBURG, Sweden (Reuters) – Health authorities in Sweden and Finland are looking into a series of COVID-19 outbreaks on ice hockey teams that are believed to be one of the drivers of a sharp increase in new cases in the two hockey-loving countries.

The day after Swedish ice hockey team BIK Karlskoga defeated Vasteras in a game in late September, one of its players complained of a fever. Three days later, half of Karlskoga’s players and staff had tested positive for COVID-19 along with six players on Vasteras.

“I felt the earth shake beneath my feet when we got the results back. I thought maybe three or four players were infected and that it would be enough to isolate them,” BIK Karlskoga manager Torsten Yngveson told Reuters.

The club shut down completely for two weeks, disrupting preparations just as the hockey season was kicking into full swing. All the players

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Meltwater lakes are accelerating glacier ice loss — ScienceDaily

Meltwater lakes that form at glacier margins cause ice to recede much further and faster compared to glaciers that terminate on land, according to a new study. But the effects of these glacial lakes are not represented in current ice loss models, warn the study authors.

Therefore, estimates of recession rates and ice mass loss from lake-terminating glaciers in the coming decades are likely to be under-estimated.

Many mountain glaciers now terminate in such lakes, formed as meltwater becomes trapped behind ridges of glacier debris. They are known as proglacial lakes. Climate change has increased glacier melt worldwide and this in turn has led to a dramatic increase in the size and number of proglacial lakes. But the effects of proglacial lakes on the rates of deglaciation and on glacier behaviour have previously been poorly understood.

Now, an international team of researchers, led by the University of Leeds, has quantified

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Proglacial lakes are accelerating glacier ice loss

Proglacial lakes are accelerating glacier ice loss
Credit: Dr Jenna Sutherland

Meltwater lakes that form at glacier margins cause ice to recede much further and faster compared to glaciers that terminate on land, according to a new study. But the effects of these glacial lakes are not represented in current ice loss models, warn the study authors.


Therefore, estimates of recession rates and ice mass loss from lake-terminating glaciers in the coming decades are likely to be under-estimated.

Many mountain glaciers now terminate in such lakes, formed as meltwater becomes trapped behind ridges of glacier debris. They are known as proglacial lakes. Climate change has increased glacier melt worldwide and this in turn has led to a dramatic increase in the size and number of proglacial lakes. But the effects of proglacial lakes on the rates of deglaciation and on glacier behavior have previously been poorly understood.

Now, an international team of researchers, led by the University

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Ice Cream Market Will Showcase Positive Impact During 2020-2024 | The Increasing Launch of New Products to Boost the Market Growth

Technavio has been monitoring the ice cream market and it is poised to grow by $ 20.2 bn during 2020-2024, progressing at a CAGR of almost 5% during the forecast period. The report offers an up-to-date analysis regarding the current market scenario, latest trends and drivers, and the overall market environment.

This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20201008006069/en/

Technavio has announced its latest market research report titled Global Ice Cream Market 2020-2024 (Graphic: Business Wire)

Technavio’s in-depth research has all your needs covered as our research reports include all foreseeable market scenarios, including pre- & post-COVID-19 analysis. We offer $1000 worth of FREE customization

The market is fairly fragmented, and the degree of fragmentation will accelerate during the forecast period. Agropur Co-operative, Blue Bell Creameries LP, Dunkin’ Brands Group Inc., Froneri Ltd., Gujarat Cooperative Milk Marketing Federation Ltd., Mars Inc., Nestlé SA, New Forest Ice Cream

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Arctic odyssey ends, bringing home tales of alarming ice loss

The biggest Arctic expedition in history will return to the German port of Bremerhaven on Monday after a year-long mission, bringing home observations from scientists that sea ice is melting at a “dramatic rate” in the region.

Coronavirus restrictions mean there will be no grand fanfare when the German Alfred Wegener Institute’s Polarstern ship docks.

But the information gathered by researchers as the ship drifted through the ocean trapped in ice will be vital to helping scientists understand the effects of climate change.

In the summer, the researchers saw for themselves the dramatic effects of global warming on ice in the region, considered “the epicentre of climate change”, according to mission leader Markus Rex.

“We could see broad stretches of open water reaching nearly to the Pole, surrounded by ice that was riddled with holes produced by massive melting,” Rex said.

His sobering conclusion: “The Arctic ice is disappearing at

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Polar ice, atmospheric water vapor biggest drivers of variation among climate models — ScienceDaily

A Florida State University researcher is part of a team that has found varying projections on global warming trends put forth by climate change scientists can be explained by differing models’ predictions regarding ice loss and atmospheric water vapor.

The work will help climate scientists reconcile various models to improve their accuracy, said Florida State University Meteorology Professor Ming Cai, one of the authors of the study published in Nature Communications .

Climate scientists agree that the Earth’s surface temperature is warming, but the details of exactly where and by how much are less clear. A worst-case climate change scenario (known as the “Representative Concentration Pathway 8.5”) predicted a likely increase in average global temperatures of about 2.6 degrees Celsius to 4.8 degrees Celsius (or about 4.7 degrees Fahrenheit to 8.6 degrees Fahrenheit) by 2100.

“This uncertainty limits our ability to foresee the severity of the global warming impacts on

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Ice discharge in the North Pacific set off series of climate events during last ice age — ScienceDaily

Repeated catastrophic ice discharges from western North America into the North Pacific contributed to, and perhaps triggered, hemispheric-scale changes in the Earth’s climate during the last ice age, new research published online today in Science reveals.

The discovery provides new insight into the impact rapidly melting ice flowing into the North Pacific may have on the climate across the planet, said Maureen Walczak, a paleoclimatologist in Oregon State University’s College of Earth, Ocean, and Atmospheric Sciences and the study’s lead author.

“Understanding how the ocean has interacted with glacial ice in the past helps us predict what could happen next,” Walczak said.

The Cordilleran ice sheet once covered large portions of western North America from Alaska to Washington state and western Montana. Radiocarbon dating and analyses of the marine sediment record revealed that recurrent episodes of discharge from this ice sheet over the past 42,000 years were early events in

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