When Greenland was green: Ancient soil from beneath a mile of ice offers warnings for the future
1 year, 8 months ago

When Greenland was green: Ancient soil from beneath a mile of ice offers warnings for the future

Salon  

About 400,000 years ago, large parts of Greenland were ice-free. At that time, Earth and its early humans were going through one of the longest interglacial periods since ice sheets first covered the high latitudes 2.5 million years ago. The drilling took place at Camp Century, one of the military's most unusual bases – it was nuclear powered and made up of a series of tunnels dug into the Greenland ice sheet. Halley Mastro/University of Vermont Dating ancient rock, twigs and dirt Using samples cut from the center of the sediment core and prepared and analyzed in the dark so that the material retained an accurate memory of its last exposure to sunlight, we now know that the ice sheet covering northwest Greenland – nearly a mile thick today – vanished during the extended natural warm period known to climate scientists as MIS 11, between 424,000 and 374,000 years ago. Ice sheet models run by Benjamin Keisling, now incorporating our new knowledge that Camp Century was ice-free 416,000 years ago, show that Greenland's ice sheet must have shrunk significantly then.

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History of this topic

Greenland ice sheet cracking open quicker than ever before, warn scientists
1 month, 3 weeks ago

Greenland ice sheet cracking open quicker than ever before, warn scientists

The Independent  

Sign up to the Independent Climate email for the latest advice on saving the planet Get our free Climate email Get our free Climate email SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our privacy policy The world’s second largest body of ice – the Greenland Ice Sheet – is cracking …

NASA scans discover abandoned Cold War-era ‘secret city’ under Greenland's ice sheet; Here's what scientists expect next
3 months, 3 weeks ago

NASA scans discover abandoned Cold War-era ‘secret city’ under Greenland's ice sheet; Here's what scientists expect next

Hindustan Times  

An abandoned “city” from the Cold War has been discovered beneath the ice in a radar image captured by NASA scientists in Greenland. The deserted city belongs to Camp Century, a military installation constructed in 1959 after excavating a network of tunnels below the Greenland ice sheet's near-surface layer. Here's what researchers expect next with NASA discovery The goal of …

Research expedition aims to understand global effects of Greenland’s melting ice
8 months, 1 week ago

Research expedition aims to understand global effects of Greenland’s melting ice

The Independent  

Sign up to the Independent Climate email for the latest advice on saving the planet Get our free Climate email Get our free Climate email SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our privacy policy A team of researchers is launching a scientific expedition to Greenland to advance understanding of …

Greenland lost 20% more ice than previously estimated: Study
1 year, 2 months ago

Greenland lost 20% more ice than previously estimated: Study

Live Mint  

Due to global warming, glaciers in Greenland are melting five times faster than 20 years ago, scientists from the University of Copenhagen revealed in November last year. According to a Reuters report, if the ancient ice sheet were to melt away completely, it would raise sea levels by at least 20 feet. The melting of Greenland’s ice sheet, the second-largest …

Greenland has lost more ice than previously thought: study
1 year, 2 months ago

Greenland has lost more ice than previously thought: study

The Hindu  

Climate change has caused Greenland’s ice sheet to lose 20% more ice than previously thought, according to research published Wednesday that used satellite imagery to track the retreat of glaciers over the past four decades. Previous studies have found that about 5,000 gigatons of ice has been lost from the surface of the Greenland ice sheet in the past two …

Scientists reveal how Greenland Ice Sheet has shrunk over past four decades
1 year, 2 months ago

Scientists reveal how Greenland Ice Sheet has shrunk over past four decades

Hindustan Times  

The Greenland Ice Sheet lost 5,091 sq km of area between 1985 and 2022, according to a study in the journal Nature published on Wednesday, the first full ice-sheet wide estimate of area loss on that scale. It suggests previous estimates of changes to the Greenland Ice Sheet's mass balance - how much snow and ice is accumulated each year …

When Greenland was green: Ancient soil from beneath a mile of ice offers warnings for the future
1 year, 8 months ago

When Greenland was green: Ancient soil from beneath a mile of ice offers warnings for the future

The Hindu  

About 400,000 years ago, large parts of Greenland were ice-free. At that time, Earth and its early humans were going through one of the longest interglacial periods since ice sheets first covered the high latitudes 2.5 million years ago. The drilling took place at Camp Century, one of the military’s most unusual bases – it was nuclear-powered and made up …

Greenland may have been almost ice free as recently as 416,000 years ago – study
1 year, 8 months ago

Greenland may have been almost ice free as recently as 416,000 years ago – study

The Independent  

Sign up to the Independent Climate email for the latest advice on saving the planet Get our free Climate email Get our free Climate email SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our privacy policy Greenland may have truly been green as recently as 416,000 years ago, scientists have said, …

Greenland at its warmest in 1,000 years, says new study
2 years, 2 months ago

Greenland at its warmest in 1,000 years, says new study

Live Mint  

Temperatures in parts of Greenland are warmer than they have been in 1,000 years, the co-author of a study that reconstructed conditions by drilling deep into the ice sheet told AFP on Friday. clear that we need to get this warming under control in order to stop the melting of the Greenlandic ice sheet", climate physics associate professor Bo Mollesoe …

Greenland ice sheet at its warmest level in past 1,000 years – study
2 years, 2 months ago

Greenland ice sheet at its warmest level in past 1,000 years – study

The Independent  

Sign up to the Independent Climate email for the latest advice on saving the planet Get our free Climate email Get our free Climate email SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our privacy policy The Greenland ice sheet was warmer in the first decade of this century compared to …

Unavoidable Greenland ice melt will raise sea level by 10 inches
2 years, 6 months ago

Unavoidable Greenland ice melt will raise sea level by 10 inches

The Independent  

Sign up to the Independent Climate email for the latest advice on saving the planet Get our free Climate email Get our free Climate email SIGN UP I would like to be emailed about offers, events and updates from The Independent. “In the foreseeable scenario that global warming will only continue, the contribution of the Greenland ice sheet to sea …

Greenland's ice sheet has completely melted at least once in the last million years
4 years ago

Greenland's ice sheet has completely melted at least once in the last million years

Firstpost  

If the ice sheet were to vanish altogether, it would lift global oceans by nearly seven metres. The ice sheet atop Greenland — which holds enough frozen water to swamp coastal cities worldwide — has melted to the ground at least once in the last million years despite CO2 levels far lower than today, stunned scientists have reported. “This is …

Scientists Found Perfectly Persevered Leaves Miles Under Greenland Ice. They Tell an Important Climate Change Lesson
4 years ago

Scientists Found Perfectly Persevered Leaves Miles Under Greenland Ice. They Tell an Important Climate Change Lesson

News 18  

In 1963, inside a covert U.S. military base in northern Greenland, a team of scientists began drilling down through the Greenland ice sheet. Over the last million years, Earth’s climate was punctuated by relatively short warm periods, typically lasting about 10,000 years, called interglacials, when there was less ice at the poles and sea level was higher. The Greenland ice …

Greenland: Plants nearly a MILE under ice sheet suggest area was once ice-free
4 years ago

Greenland: Plants nearly a MILE under ice sheet suggest area was once ice-free

Daily Mail  

Plant fossils, twigs and leaves have been discovered under a mile of ice on Greenland, suggesting the area was free of ice within the last million years. But a new study shows that within the last million years it melted off and became covered with green tundra, perhaps like this view of eastern Greenland, on the coast near the ocean …

Climate crisis: Greenland on course to lose more ice this century than in any other in past 12,000 years
4 years, 5 months ago

Climate crisis: Greenland on course to lose more ice this century than in any other in past 12,000 years

The Independent  

Sign up to the Independent Climate email for the latest advice on saving the planet Get our free Climate email Get our free Climate email SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our privacy policy The decline of Greenland’s vast ice sheet is accelerating so quickly it is likely to …

Greenland’s ice sheet is melting as fast as at any time in the last 12,000 years, study shows
4 years, 5 months ago

Greenland’s ice sheet is melting as fast as at any time in the last 12,000 years, study shows

CNN  

CNN — We’ve known for some time now that Greenland’s ice sheet is melting at an alarming rate. Greenland's ice sheet -- which contains enough water to raise global sea levels by 24 feet -- is melting as fast as at any time in the last 12,000 years, a new study finds. Greenland’s ice sheet contains enough water to raise …

Greenland's ice sheet melted away at record levels in 2019, scientists fear it will continue
4 years, 7 months ago

Greenland's ice sheet melted away at record levels in 2019, scientists fear it will continue

ABC  

Greenland's ice sheet lost a record amount of mass in 2019, a finding that could prompt scientists to redefine their worst-case scenario as they assess the effects of climate change. Key points: Greenland lost 532 gigatonnes of ice, 15 per cent more than the previous record in 2012 Its icy bulk melted more quickly than anticipated amid climate warming Another …

Greenland’s ice sheet melted faster than ever before in 2019, study says. That’s worrying news for coastal cities across the world
4 years, 7 months ago

Greenland’s ice sheet melted faster than ever before in 2019, study says. That’s worrying news for coastal cities across the world

CNN  

CNN — Greenland’s ice sheet melted more last year than any year previously recorded, according to a new study, in another sign of the devastating impacts of a warming planet. To put that in comparison, between 2003 and 2016 the ice sheet lost about 255 billion tons of ice on average – per year “We have documented another record loss …

Greenland Ice Sheet Passes Point of No Return Due to Climate Change: Study
4 years, 7 months ago

Greenland Ice Sheet Passes Point of No Return Due to Climate Change: Study

News 18  

Glaciers on Greenland have shrunk so much that even if global warming were to stop today, the ice sheet would continue to melt, according to a study of nearly 40 years of satellite data from the island. "And what we've found is that the ice that's discharging into the ocean is far surpassing the snow that's accumulating on the surface …

Greenland ice sheet passes point of no return due to climate change: Study
4 years, 7 months ago

Greenland ice sheet passes point of no return due to climate change: Study

India TV News  

Glaciers on Greenland have shrunk so much that even if global warming were to stop today, the ice sheet would continue to melt, according to a study of nearly 40 years of satellite data from the island. "And what we've found is that the ice that's discharging into the ocean is far surpassing the snow that's accumulating on the surface …

Greenland's Melting Ice Sheets Are Past the Point of No Return, Find Scientists
4 years, 7 months ago

Greenland's Melting Ice Sheets Are Past the Point of No Return, Find Scientists

News 18  

Greenland’s ice sheet may have shrunk past the point of return, with the ice likely to melt away no matter how quickly the world reduces climate-warming emissions, new research suggests. If all of Greenland’s ice goes, the water released would push sea levels up by an average of 6 meters — enough to swamp many coastal cities around the world. …

Greenland’s ice sheet has melted to a point of no return, study finds
4 years, 7 months ago

Greenland’s ice sheet has melted to a point of no return, study finds

CNN  

CNN — Greenland’s ice sheet has melted to a point of no return, and efforts to slow global warming will not stop it from disintegrating. Greenland’s ice sheet dumps more than 280 billion metric tons of melting ice into the ocean each year, making it the greatest single contributor to global sea level rise, according to Michalea King, the lead …

Greenland ice sheet melting faster than ever before, study finds
4 years, 11 months ago

Greenland ice sheet melting faster than ever before, study finds

The Independent  

Sign up to the Independent Climate email for the latest advice on saving the planet Get our free Climate email Get our free Climate email SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our privacy policy Greenland’s ice sheet shrank more last year than at any time since records began in …

Greenland's Ice Sheet Melted at a Record Rate in 2019 and it's Not Slowing Down Soon, Shows Study
5 years, 4 months ago

Greenland's Ice Sheet Melted at a Record Rate in 2019 and it's Not Slowing Down Soon, Shows Study

News 18  

Greenland's Ice Sheet Melted at a Record Rate in 2019 and it's Not Slowing Down Soon, Shows Study Last Updated: August 21, 2020, 07:22 IST The study adds to evidence that Greenland’s icy bulk is melting more quickly than anticipated amid climate warming. Greenland’s ice sheet lost a record amount of mass last year, according to a study published on …

Climate change: Study shows ‘off the charts’ melting of Greenland’s ice sheet
6 years, 3 months ago

Climate change: Study shows ‘off the charts’ melting of Greenland’s ice sheet

CNN  

CNN — Greenland’s massive ice sheets contain enough water to raise global sea levels by 23 feet, and a new study shows that they are melting at a rate “unprecedented” over centuries – and likely thousands of years. The study, published Thursday in the scientific journal Nature, found that Greenland’s ice loss accelerated rapidly in the past two decades after …

Greenland Ice sheet could be losing mass, says study
7 years, 4 months ago

Greenland Ice sheet could be losing mass, says study

ABP News  

Washington DC, November 10 : A new study shows that global warming has reduced the mass of the Cordilleran Ice Sheet by half in as little as 500 years, indicating the Greenland Ice Sheet could face a similar fate. Since, the Cordilleran Ice Sheet was similar in mass to the Greenland Ice Sheet, the researchers predict that the latter might …

Climate change scientists 'very worried' Greenland ice sheet might start to melt 'faster and faster'
7 years, 7 months ago

Climate change scientists 'very worried' Greenland ice sheet might start to melt 'faster and faster'

The Independent  

Sign up to the Independent Climate email for the latest advice on saving the planet Get our free Climate email Get our free Climate email SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our privacy policy Scientists are “very worried” that the Greenland ice sheet might start to melt “faster and …

Greenland ice sheet’s sudden meltdown catches scientists by surprise
8 years, 11 months ago

Greenland ice sheet’s sudden meltdown catches scientists by surprise

LA Times  

Danish researchers say that the Greenland ice sheet was covered in a record-breaking amount of melt water on April 11. Monday saw the Greenland ice sheet covered in a record-breaking level of melt water for this time of year, according to scientists who monitor it. Researchers at the Danish Meteorological Institute found that a whopping 12% of the ice sheet …

Scientists: Greenland ice sheet is melting freakishly early
8 years, 11 months ago

Scientists: Greenland ice sheet is melting freakishly early

Associated Press  

WASHINGTON — Greenland’s massive ice sheet this week started melting freakishly early thanks to a weather system that brought unseasonably warm temperatures and rain, scientists say. “Something like this wipes out all kinds of records, you can’t help but go this could be a sign of things we’re going to see more often in the future.” What’s causing this weeks’ …

NASA releases 3D view of Greenland ice sheet
10 years, 1 month ago

NASA releases 3D view of Greenland ice sheet

India TV News  

Washington: Using ice-penetrating radar data, NASA scientists have built the first-ever comprehensive map of layers deep inside the Greenland ice sheet. "This new, huge data volume records how the ice sheet evolved and how it's flowing today," said Joe MacGregor, glaciologist at the University of Texas at Austin and the study's lead author. Greenland's ice sheet is the second largest …

Ancient Landscape Is Found Under 2 Miles Of Ice In Greenland
10 years, 11 months ago

Ancient Landscape Is Found Under 2 Miles Of Ice In Greenland

NPR  

Ancient Landscape Is Found Under 2 Miles Of Ice In Greenland Enlarge this image toggle caption Joshua Brown/University of Vermont Joshua Brown/University of Vermont In a surprising discovery, scientists have found evidence of a tundra landscape in Greenland that's millions of years old. That's why researchers from several universities and NASA say they were "greatly surprised" to find signs that …

Greenland ice sheet safer than was thought
14 years, 1 month ago

Greenland ice sheet safer than was thought

The Hindu  

The threat of the Greenland ice sheet slipping ever faster into the sea because of warmer summers has been ruled out by a scientific study. Published on January 27 “The Greenland ice sheet is safer than we thought,” said Professor Andrew Shepherd of the University of Leeds, northern England who led the research published on January 27 in Nature. Shepherd's …

Greenland's Mysterious Holes Speed Ice Flow to Sea
17 years, 3 months ago

Greenland's Mysterious Holes Speed Ice Flow to Sea

NPR  

Greenland's Mysterious Holes Speed Ice Flow to Sea Enlarge this image toggle caption Richard Harris, NPR Richard Harris, NPR If the Greenland ice cap were to melt tomorrow, the sea level around the world would rise by more than 20 feet. Joughin has come to Greenland with a colleague, Sarah Das, to figure out what is going on under the …

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