The Vikings are remembered as fierce fighters, but even these mighty warriors were no match for climate change. Scientists recently found that ice sheet growth and sea level rise led to massive coastal flooding that inundated Norse farms and ultimately drove the Vikings out of Greenland in the 15th century.
The Vikings first established a foothold in southern Greenland around A.D. 985 with the arrival of Erik Thorvaldsson, also known as “Erik the Red,” a Norwegian-born explorer who sailed to Greenland after being exiled from Iceland. Other Viking settlers soon followed, forming communities in Eystribyggð (Eastern Settlement) and Vestribyggð (Western Settlement) that thrived for centuries. (At the time of the Vikings’ arrival, Greenland was already inhabited by people of the Dorset Culture, an Indigenous group that preceded the arrival of the Inuit people in the Arctic, according to the University of California Riverside (opens in new tab) ).
Around the 15th century, signs of Norse habitation in the region vanished from the archaeological record. Researchers previously suggested that factors such as climate change and economic shifts likely led the Vikings to abandon Greenland. Now, new findings show that rising seas played a key role, by submerging miles of coastline, according a new study published April 17 in the journal Proceedings of the National Academy of Sciences.
Related: 1,100-year-old ‘ceremonial’ Viking shields were actually used in battle, study suggests
Between the 14th and 19th centuries, Europe and North America experienced a period of significantly cooler temperatures, known as the Little Ice Age. Under these chilly conditions, the Greenland Ice Sheet — a vast blanket of ice covering most of Greenland — would have become even bigger, Marisa Julia Borreggine (opens in new tab) , a doctoral candidate in the Department of Earth and Planetary Sciences at Harvard University, said when she presented data at an American Geophysical Union annual conference in New Orleans in December 2021.
A digital model showing simulated sea levels in southern Greenland ice (blue to white gradient), with Viking sites (green dots) and areas of flooding (blue). (Image credit: Konstantin Latychev)
As the ice sheet advanced, its increasing heaviness weighed down the substrate underneath, making coastal areas more prone to flooding, Borreggine said. At the same time, the increased gravitational attraction between the expanding ice sheet and large masses of sea ice pushed more seawater over Greenland’s coast. These two processes could have driven widespread flooding along the coastline — “exactly where the Vikings were settled,” Borreggine said.
The scientists tested their hypothesis by modeling estimated ice growth in southwestern Greenland over the 400-year period of Norse occupation and adding those calculations to a model showing sea level rise during that time. Then, they analyzed maps of known Viking sites to see how their findings lined up with archaeological evidence marking the end of a Viking presence in Greenland. RELATED STORIES—Earliest mention of Odin, ‘king of the gods,’ found in treasure hoard from Denmark
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Their models showed that from about 1000 to 1400, rising seas around Greenland would have flooded Viking settlements by as much as 11 feet (3.3 meters), affecting about 78 square miles (204 square kilometers) of coastal land, Borreggine said. This flooding would have submerged land that the Vikings used for farming and as grazing pastures for their cattle, according to the models.
However, sea level rise was probably not the only reason the Vikings left Greenland. Other types of challenges can cause even long-standing communities to collapse, and a perfect storm of external pressures — such as climate change, social unrest and resource depletion — may have spurred the Vikings to abandon their settlements for good, Borreggine said.
“A combination of climate and environmental change, the shifting resource landscape, the flux of supply and demand of exclusive products for the foreign market, and interactions with Inuit in the North all could have contributed to this out-migration,” she said. “Likely a combination of these factors led to the Norse migration out of Greenland and further west.”
Editor’s note: Originally published on Dec. 16, 2021, following a presentation at the annual conference of the American Geophysical Union. Updated on April 19, 2023, following the study’s publication in a peer-reviewed journal.
The rate of inflation has risen by more than expected on the back of fuel and food price pressures, according to official figures which have prompted accusations of an own goal for the chancellor.
The Office for National Statistics (ONS) reported a 3.6% level for the 12 months to June – a pace not seen since January last year.
That was up from the 3.4% rate seen the previous month. Economists had expected no change.
ONS acting chief economist Richard Heys said: “Inflation ticked up in June driven mainly by motor fuel prices which fell only slightly, compared with a much larger decrease at this time last year.
“Food price inflation has increased for the third consecutive month to its highest annual rate since February of last year. However, it remains well below the peak seen in early 2023.”
A key driver of food inflation has been meat prices.
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Beef, in particular, has shot up in cost – by more than 30% over the past year – according to Association of Independent Meat Suppliers data reported by FarmingUK.
Image: Beef has seen the biggest percentage increase in meat costs. Pic: PA
High global demand alongside raised production costs have been blamed.
But Kris Hamer, director of insight at the British Retail Consortium, said: “While inflation has risen steadily over the last year, food inflation has seen a much more pronounced increase.
“Despite fierce competition between retailers, the ongoing impact of the last budget and poor harvests caused by the extreme weather have resulted in prices for consumers rising.”
It marked a clear claim that tax rises imposed on employers by Rachel Reeves from April have helped stoke inflation.
Balwinder Dhoot, director of sustainability and growth at the Food and Drink Federation, said: “The pressure on food and drink manufacturers continues to build. With many key ingredients like chocolate, butter, coffee, beef, and lamb, climbing in price – alongside high energy and labour expenses – these rising costs are gradually making their way into the prices shoppers pay at the tills.”
Chancellor Rachel Reeves said of the data: “I know working people are still struggling with the cost of living. That is why we have already taken action by increasing the national minimum wage for three million workers, rolling out free breakfast clubs in every primary school and extending the £3 bus fare cap.
“But there is more to do and I’m determined we deliver on our Plan for Change to put more money into people’s pockets.”
The wider ONS data is a timely reminder of the squeeze on living standards still being felt by many households – largely since the end of the COVID pandemic and subsequent energy-driven cost of living crisis.
Record rental costs alongside elevated borrowing costs – the latter a result of the Bank of England’s action to help keep a lid on inflation – have added to the burden on family budgets.
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8:30
Is the cost of living crisis over?
Most are still reeling from the effects of high energy bills.
The cost of gas and electricity is among the reasons why the pace of price growth for many goods and services remains above a level the Bank would ideally like to see.
Added to that is the toll placed on finances by wider hikes to bills. April saw those for water, council tax and many other essentials rise at an inflation-busting rate.
The inflation figures, along with employment data due tomorrow, are the last before the Bank of England is due to make its next interest rate decision on 7 August.
The vast majority of financial market participants, and many economists, expect a quarter point cut to 4%.
That forecast is largely based on the fact that wider economic data is suggesting a slowdown in both economic growth and the labour market – twin headaches for a chancellor gunning for growth and juggling hugely squeezed public finances.
Professor Joe Nellis, economic adviser at the advisory firm MHA, said of the ONS data: “This is a reminder that while price rises have slowed from the highs of 2021-23, the battle against inflation is far from over and there is no return to normality yet – especially for many households who are still feeling the squeeze on essentials such as food, energy, and services.
“However, while the Bank of England is expected to take a cautious approach to interest rate policy, we still expect a cut in interest rates when the Monetary Policy Committee next votes on 7th August.
“Despite inflation at 3.6% remaining above the official 2% target, a softening labour market – slowing wage growth and decreasing job vacancies – means that the MPC will predict inflation to begin falling as we head into the new year, justifying the lowering of interest rates.”
Now details of the enormous accidental data breach by a British soldier that put thousands of Afghans’ lives at risk can be discussed publicly – Sam and Anne try to address some of the biggest questions on this episode.
They include:
Why did the government break the glass on using a superinjunction?
Has anyone been sacked?
Why did the Labour government keep the superinjunction in place for so long?
There’s still a bit of time to go over Rachel Reeves’ Mansion House speech. Did it reassure financiers and investors?
An Afghan man who worked for the British military has told Sky News he feels betrayed and has “completely lost (his) mind” after his identity was part of a massive data breach.
The man, who spoke anonymously to Sky News from Afghanistan, says he worked with British forces for more than 10 years.
But now, he regrets working alongside those troops, who were first deployed to Afghanistan in 2001.
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1:59
Afghans being relocated after data breach
“I have done everything for the British forces … I regret that – why (did) I put my family in danger because of that? Is this is justice?
“We work for them, for [the] British, we help them. So now we are left behind, right now. And from today, I don’t know about my future.”
He described receiving an email warning him that his details had been revealed.
He said: “When I saw this one story… I completely lost my mind. I just thought… about my future… my family’s.
“I’ve got two kids. All my family are… in danger. Right now… I’m just completely lost.”
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The mistake by the Ministry of Defence in early 2022 ranks among the worst security breaches in modern British history because of the cost and risk posed to the lives of thousands of Afghans.
On Tuesday, a court order – preventing the media reporting details of a secret relocation programme – was lifted.
Defence Secretary John Healey said about 6,900 Afghans and their family members have been relocated or were on their way to the UK under the previously secret scheme.
He said no one else from Afghanistan would be offered asylum, after a government review found little evidence of intent from the Taliban to seek retribution.
But the anonymous Afghan man who spoke to Sky News disputed this. He claimed the Taliban, who returned to power in 2021, were actively seeking people who worked with British forces.
“My family is finished,” he said. “I request… kindly request from the British government… the King… please evacuate us.
“Maybe tomorrow we will not be anymore. Please, please help us.”