(The Canadian Press)

(The Canadian Press)

Collapse of Nunavut ice shelf ‘like losing a good friend:’ glaciologist

The ice shelf on the northwestern edge of Ellesmere Island has shrunk 43 per cent

A team of scientists placed research instruments into the Milne Ice Shelf in Nunavut last July, with plans to return to collect them this summer and study how the stability of the structure had changed.

The COVID-19 pandemic put that trip on hold. Then a week ago, the last remaining intact ice shelf in the Canadian arctic broke apart.

“And so we’ve lost not only the equipment, which is now drifting away in the Arctic Ocean, but also the information that it recorded over the time that it was out,” Carleton University glaciologist Derek Mueller said Friday.

The Canadian Ice Service said the ice shelf on the northwestern edge of Ellesmere Island has shrunk 43 per cent to 106 square kilometres from 187 square kilometres.

The calving event, captured by satellite, was not a surprise, Mueller said.

The ice shelf sits in a fjord sheltered by tall cliffs, so it had not melted as quickly as others.

While it managed to stay together until last week, Mueller said he had observed worsening cracks and rifts since he first started studying the area in 2004.

“It certainly has been changing — there’s no doubt. And, to me, it wasn’t really a question of if this breakup would happen. It was a question of when it would happen,” Mueller said.

“But still it hits home. It’s sort of like losing a good friend in a way.”

The ice shelf collapse also set adrift research into marine organisms, such as sponges and sea anemones, discovered in water pockets within the ice.

“We’re not sure what these consequences are for these animals. And certainly they won’t be where we were studying them, because that piece has drifted away from the shore,” Mueller said.

“If we find these kinds of animals again, I think it will be a stroke of luck.”

At the turn of the 20th century, 8,600 square kilometres of ice stretched along the northern coast of Ellesmere Island. By 2000, it was reduced to 1,000 and now it’s half that, Mueller said.

University of Ottawa glaciologist Luke Copland said in a news release that the temperature has been up to 5 C warmer this summer than the average between 1981 and 2010.

The region has been warming at two to three times the global rate, he added.

“This drastic decline in ice shelves is clearly related to climate change,” Copland said.

“The Milne and other ice shelves in Canada are simply not viable any longer and will disappear in the coming decades.”

Mueller said the ice shelf collapse should be a wake-up call.

“These ice shelves are well out of balance with the climate and I think their demise is inevitable,” he said.

“But, having said that, it’s not too late to make changes to the way we live and our carbon footprint.”

Lauren Krugel, The Canadian Press

Like us on Facebook and follow us on Twitter.

Want to support local journalism? Make a donation here.

Climate Change

Get local stories you won't find anywhere else right to your inbox.
Sign up here

Just Posted

File photo
Alberta’s central zone has 670 active cases

301 new cases identified Sunday

Alberta has 1,910 active cases of COVID-19 as of Wednesday. Red Deer is reporting five active cases, with 108 recovered. (File photo)
Red Deer reports 25th COVID-19 death

415 new cases identified provincially Saturday

Alberta Health reported two new COVID-19 deaths in Red Deer Friday. (Image courtesy CDC)
Two more deaths linked to Olymel outbreak in Red Deer

Province reported 356 additional COVID-19 cases Friday

Alberta Premier Jason Kenney speaks during a news conference in Edmonton on Feb. 24, 2020. It’s budget day in the province, and Kenney’s United Conservative government is promising more help in the fight against COVID, but more red ink on the bottom line. THE CANADIAN PRESS/Jason Franson
Alberta’s budget promises more help for COVID-19 with a hard deficit

Annual spending on debt interest is closing in on $3 billion

Alberta reported an additional 399 cases of COVID-19 Thursday, on 9,217 tests, for a test positivity rate of 4.3 per cent. (Image courtesy CDC)
Red Deer down to 562 active COVID-19 cases

8 new COVID-19 deaths, 399 additional COVID-19 cases

Bookings for COVID-19 vaccines for people age 75 or older start Wednesday. (File photo by THE CANADIAN PRESS)
Updated: Delays for seniors booking for vaccine appointments

By 9:20 a.m. Wednesday, 4,500 seniors had booked their appointments

People line up outside a vaccine clinic as seniors wait to get the COVID-19 vaccine in Edmonton Alta, on Friday February 26, 2021. THE CANADIAN PRESS/Jason Franson
Alberta Health Services head sorry for glitches in vaccine booking system for seniors

AHS president said technical issues have been fixed and a virtual waiting room is in place

Vandalism is shown on Alberta NDP MLA Janis Irwin’s constituency office in Edmonton in this handout photo on Saturday, February 27, 2021. Alberta Premier Jason Kenney quickly condemned vandalism at an Opposition legislature member Janis Irwin’s Edmonton office after the MLA posted pictures showing her front window spray-painted with the words “Antifa Liar.” THE CANADIAN PRESS/HO, Janis Irwin *MANDATORY CREDIT*
Alberta Premier slams vandalism after slur painted on MLA’s office window

Edmonton MLA Janis Irwin posted pictures showing the front window spray-painted with the words ‘Antifa Liar’

A helicopter flies past a mountain near McBride, B.C., on Saturday January 30, 2016. THE CANADIAN PRESS/Darryl Dyck
Avalanche warning for backcountry users in North and South Rockies

Avalanche Canada is urging backcountry users to always check their regional avalanche forecasts

Supporters pray outside court in Stony Plain, Alta., on Wednesday, Feb. 24, 2021, as a trial date was set for Pastor James Coates of GraceLife Church. He is charged with holding Sunday services in violation of Alberta’s COVID-19 rules and with breaking conditions of his bail release. THE CANADIAN PRESS/Jason Franson
Trial date for jailed Alberta pastor charged with breaking COVID-19 health orders

The court says it will reconvene with lawyers on March 5 for a case management plan by teleconference

A pharmacist prepares a COVID-19 vaccine at Village Green Retirement Campus in Federal Way on Jan. 26. (Olivia Sullivan/Sound Publishing)
Canada approves use of AstraZeneca’s COVID-19 vaccine

The country joins more than a dozen others in giving the shot the green light

Emily Keeping of Wetaskiwin, Alta., was last seen at 4:20 p.m. on Feb. 25, 2021 at the FasGas on 49 St and 50 Ave in Wetaskiwin. Supplied/ Wetaskiwin RCMP.
UPDATE: Wetaskiwin RCMP seek assistance in locating missing 11-year-old

Emily Keeping was last seen on Feb. 25, 2021 at the FasGas on 49 St and 50 Ave in Wetaskiwin.

Sylvan Lake's Winter Village lured many visitors to the town this winter. The town has launched a new contest to attract a new business.
(Black Press file photo)
Sylvan Lake offering rent-free storefront space to lure new businesses

Winning business proposal will get a storefront space rent-free for a year

Most Read