•   
  •   

World 3 charts showing the alarming decline of Arctic sea ice this year

21:46  28 october  2020
21:46  28 october  2020 Source:   vox.com

The place in North America with no Covid-19 cases

  The place in North America with no Covid-19 cases Nunavut, in Canada's north, has managed to keep coronavirus out of its communities.Last March, as borders around the world were slamming shut as coronavirus infections rose, officials in Nunavut decided they too would take no risks.

It shows this year ’s sea ice levels fall well below the median from 1981-2010. What this trend means is that the formerly The chart below shows that the Eastern Siberian, Laptev, and Kara seas (all part of the Eastern Arctic Ocean) have had particularly low sea ice formation compared to the recent past.

The Arctic sea ice decline has occurred in recent decades by sea ice in the Arctic Ocean melting faster than it refreezes in the winter. The IPCC, in its Fourth Assessment Report, stated that greenhouse gas forcing is predominantly responsible for the decline in Arctic sea ice extent.

For the past five months, Melinda Webster has lived on an icebreaker ship frozen in an ice floe near the North Pole.

a large ship in a body of water: A crack in the ice floe where the Polarstern was anchored in October, 2019. © Stefan Hendricks/Alfred-Wegener-Institut A crack in the ice floe where the Polarstern was anchored in October, 2019.

For Webster, a sea ice geophysicist at the University of Alaska Fairbanks, it was an ideal observatory. She and a team of 14 other scientists set out, as part of the largest polar expedition ever, to study rapidly disappearing sea ice, which is often shrouded from the view of satellites by thick fog.

Protected from polar bears by armed guards, the researchers spent their days measuring every aspect of the sea ice including the snow and ice thickness, the depth of melt ponds on the surface, and the ice’s reflectivity. They wore red “survival suits” to insulate them during the occasional plunge through cracking ice into the Arctic Ocean.

A Certain Ratio's Jez Kerr launches new label Small Moves Records

  A Certain Ratio's Jez Kerr launches new label Small Moves Records Jez Kerr of A Certain Ratio has launched a new independent record label named Small Moves Records.The musician - who is best known as a member of the British post-punk band - has teamed up with Steve Brown from Higuera Records and Factory Records' graphic designer Trevor Johnson for the new indie label based out in Manchester.

Arctic Sea Ice Has Shrunk to Almost Historic Levels. Ivory gulls congregate on a small ice floe at the sea Satellites have been taking snapshots of Arctic sea ice since 1979, and ice coverage had been declining by This graph shows the average September extent of Arctic sea ice over the years .

3 charts showing the alarming decline of Arctic sea ice this year . Global warming is melting Arctic sea ice , which in turn may accelerate global warming.

“People did fall in, myself included,” Webster recounted with a laugh. “But that’s just part of it, you know.”

Braving the elements to develop a fuller picture of the sea ice is essential research because sea ice itself is a most important bellwether of the climate change in the Arctic. Due to our ever-increasing greenhouse gas emissions, the Arctic surface air temperatures have been warming rapidly — at twice the rate of the global average.

Historically, during the winter, sea ice has covered a vast swath of the Arctic Ocean, which fills much of the Arctic Circle. But it as temperatures rise, it has been shrinking 12 percent every decade since measurements began in the 1979.

Sea ice coverage fluctuates seasonally, hitting a low in September before forming again as temperatures drop in the fall — and expanding again by two to three times by the end of the winter in March. Webster and her team surveyed the summer conditions and the beginning of the “re-freeze.” But this year, that regrowth has been slower than ever. As October comes to a close, sea ice is at its lowest level for the month in recorded history.

Eva Longoria joins Ice Cube in sci-fi film

  Eva Longoria joins Ice Cube in sci-fi film Eva Longoria has joined Ice Cube in the cast of Universal's upcoming sci-fi project.The 45-year-old actress has boarded the untitled project, which has been fast-tracked by the studio and is due to begin production next month.

This year ’s Arctic sea ice cover shrank to the second lowest extent since modern record-keeping began in the late 1970s. An analysis of satellite data by NASA and the National Snow and Ice Data Center (NSIDC) at the University of Colorado Boulder shows that the 2020 minimum extent, which

Arctic sea ice has been in a steep decline since scientists started using satellites to measure it 40 years ago. And the 10 lowest ice extents have all At that point, ice covered 1.8 million square miles, or 4.6 million square kilometers, of Arctic waters. That makes this year ’s minimum the eighth-lowest

Aboard the German Polarstern icebreaker ship, the changing ice conditions were palpable. Webster noticed in particular “just how easy it was to go across the Arctic, across the North Pole, like the ice is very thin,” she said. “It was easy to break through the ice pack, and the ship was only running on three engines rather than the full four.”

The shrinking and thinning out of Arctic sea ice is bad news for polar bears and indigenous people, who rely on the sea ice to hunt. The disappearance of the sea ice also further accelerates warming. When the white surface is replaced by a dark open ocean, more heat is absorbed and less light is reflected. According to a new study in Nature Communications, this feedback loop could add 0.19 degrees Celsius to the global temperature by mid-century, nearly wiping out the temperature effect of China going carbon neutral.

To understand what’s driving the dramatic transformation underway in the Arctic Ocean, let’s look at three compelling charts created by Colorado State University atmospheric scientist Zachary Labe.

Paul McCartney 'finishes work on final album in trilogy'

  Paul McCartney 'finishes work on final album in trilogy' The Beatles legend Sir Paul McCartney is reportedly set to announce the third in a trilogy of solo albums this week.The Beatles legend - who released his debut solo LP 'McCartney' in 1970 and followed with 'McCartney II' a decade later - is set to announce the next record on Thursday (22.10.20).

Arctic sea ice area is sensitive to ambient temperature. The satellite data also show a long term faster than the rest of the world with a steep and alarming rate of loss in September’s seasonal. multi- year decline in sea ice Area serves as measure of the impact of anthropogenic global warming.

The sea ice cover is one of the key components of the polar climate system. Shown below are up-to-date satellite observations of the sea ice covers of both the Arctic and the Antarctic, along with comparisons with the historical satellite record of more than 37 years .

Sea ice has hit a record low for October

The overall drop in sea ice is starkly evident in the chart below. It shows this year’s sea ice levels fall well below the median from 1981-2010. What this trend means is that the formerly snow-covered sea ice of the northernmost latitudes is increasingly turning into dark blue open ocean.

chart, histogram © Zachary Labe

2020 produced a number of frightening signs of the precariousness of Arctic sea ice. This month break the record for the lowest sea ice extent in October, over 1.5 million square miles less than the 1980s average — an area larger than India, according to Labe.

This year’s sea ice minimum, which typically occurs in September after the summer melt, was also the second lowest on record after 2012. The chart below shows how sea ice recovery in October has lagged behind the typical pattern of previous decades.

chart © Zachary Labe

What has caused large parts of the Arctic to remain ice-free well into the fall? As Andres Flij of Severe Weather Europe points out, the Eastern Arctic Ocean (north of Siberia) has been several degrees Celsius warmer than the 1981 to 2010 average. These warm temperatures are making it difficult for ice to form.

Machine Gun Kelly believes his pop punk album will drive "demand" for guitar music

  Machine Gun Kelly believes his pop punk album will drive Machine Gun Kelly is confident that by him bringing pop punk to a different audience with his album 'Tickets To My Downfall', demand for guitar music will be given a boost.The rapper believes his latest record - which is influenced by the genre's pioneers Blink-182 and produced by the band's drummer Travis Scott - has inspired the "new generation" of teenagers to get into pop punk or rock music in general and make way for new bands to come through.

The chart below shows that the Eastern Siberian, Laptev, and Kara seas (all part of the Eastern Arctic Ocean) have had particularly low sea ice formation compared to the recent past.

  3 charts showing the alarming decline of Arctic sea ice this year © Zachary Labe

The consequences of an increasingly iceless Arctic Ocean

This October’s low sea ice extent might hold the record for a period, but climate scientists expect it will be surpassed in the years to come.

“We can expect to see substantial year-to-year variability, but overall the ice cover is becoming smaller and thinner during the fall months,” Labe said. “While 2020 is currently a record low, it may resemble a typical October in the not too distant future.” The Arctic Ocean is even projected to be ice-free in the summer as soon as 2050.

The decrease in ice has already affected indigenous people who use the sea ice to hunt for whales and seals. This has contributed to increasing food insecurity — in 2014, a Washington food bank supplied 10,000 pounds of halibut to indigenous communities in Alaska when the walrus hunt came up short, Ed Struzik reported for Yale Environment 360.

It also spells peril for polar bears, which also use the ice to hunt for food. A recent study in Nature Climate Change projects that polar bears will be nearly extinct by the end of the century due to the loss of habitat.

The Arctic Ocean has not yet frozen over and we should be concerned about it

 The Arctic Ocean has not yet frozen over and we should be concerned about it © Supplied by Slate The Arctic sea ice may have completely disappeared in summer by 2035. | Guillaume Falco via Pexels This is a first that the planet would have gone well: the sea of ​​Laptev still did not start to freeze at the end of October; a first at this time of year for this region considered to be the cradle of the Arctic Ocean ice.

Changes in the ice are part of a larger “cascade effect,” as Webster describes it, in which delayed winter ice growth leads to thinner ice, which melts more easily in the summer months compared to older, thicker sea ice. This creates more open ocean.

This transformation contributes to both regional and global warming. Where a white sea ice surface would have reflected sunlight, the dark water absorbs heat, which further reduces ice growth. This change in albedo (or reflectivity) on sea and land in the Arctic is one of the main reasons the region is heating at twice the global average rate, according to the National Oceanic and Atmospheric Administration’s 2019 Arctic Report Card. According to the recent Nature Communications study, it will also be a significant contributor to global warming.

Near Greenland — which holds a massive ice sheet — the warming loop set off by sea ice loss has a minor effect on its warming, but not a substantial effect on the ice sheet itself, researchers found in a 2019 study in Geophysical Research Letters.

The sea ice shift could also impact seasonal weather, potentially intensifying extreme weather. However, Labe says the issue requires further research. “Scientists are actively studying the connections between Arctic sea ice loss and wintertime weather patterns in North America, Europe, and Asia,” he said. “However, these relationships remain highly uncertain in the scientific literature and for seasonal weather forecasts.”

For now, the plummeting sea ice volumes are a startling reminder of just how rapidly the planet is changing, and how dire the consequences of delaying radical cuts in greenhouse gas emissions will be.

Help keep Vox free for all

Millions turn to Vox each month to understand what’s happening in the news, from the coronavirus crisis to a racial reckoning to what is, quite possibly, the most consequential presidential election of our lifetimes. Our mission has never been more vital than it is in this moment: to empower you through understanding. But our distinctive brand of explanatory journalism takes resources. Even when the economy and the news advertising market recovers, your support will be a critical part of sustaining our resource-intensive work. If you have already contributed, thank you. If you haven’t, please consider helping everyone make sense of an increasingly chaotic world: Contribute today from as little as $3.

The Bachelor: Matty Johnson and Laura Byrne hit Bondi with daughter, 1 .
The Bachelor couple, who got engaged in April last year, hit Sydney's Bondi Beach on Sunday with their one-year-old daughter, Marlie Mae . © Provided by Daily Mail Beach day: Bachelor lovebirds Matty Johnson and Laura Byrne appear to be making the most of their last few months as a family of three. The couple, who are expecting their second child together, hit Sydney's Bondi Beach on Sunday with their one Matty looked every inch the heart-throb as he cradled his child in his arms.

usr: 0
This is interesting!