8.6 C
New York
Wednesday, August 4, 2021
Home Technology The Arctic could soon be ice-free in the summer. Can geoengineering help?

The Arctic could soon be ice-free in the summer. Can geoengineering help?

It used to be the size of all ten provinces. Now it only stretches the equivalent of Manitoba to Newfoundland in size. 

It’s the Arctic’s ice cap and it’s shrinking. Every summer some sea ice melts — that’s normal — but this year saw the ice shrink to the second lowest level in more than 40 years of measurement.

The record low was documented in the summer of 2012, according to satellite data from the U.S. National Snow and Ice Data Centre in Boulder, Colo. At the time, 2012 was called an anomaly, but 2020 isn’t far behind.

“Sadly, I would no longer consider this particularly anomalous,” said NSIDC’s deputy lead scientist Twila Moon. 

“We’ve been seeing very consistently low sea ice extents, and this is certainly reaching towards the lowest we’ve seen. But I have no expectation that we will … see any resurgence in sea ice.” 

That level of melt has implications for Arctic residents like 68-year-old Frank Pokiak, who has hunted for food on the ice most of his life.

“The temperature’s been warming.  We used to set fish nets under the ice this time of year in the harbour. And right now the ocean and the harbour’s still open. That’s a big change,” he told What on Earth host Laura Lynch.

Recent studies suggest the Arctic will be ice-free in the summer by 2050 — or as early as 2035 — if nothing changes and global warming cannot be stopped.  

Leslie Field of the Arctic Ice Project stands in front of their test site in Utqiaġvik, Alaska. (Arctic Ice Project)

But the founder of the non-profit Arctic Ice Project, Leslie Field, is offering a potential solution.

Field, an engineer and inventor, is testing a geoengineering project to slow the melt of sea ice, while the world works on lowering emissions.

“We’re not getting there in time to prevent an awful lot of climate devastation,” she told Lynch.

“That’s really the point of our work is to give the world time with less devastation, to get that important decarbonization work done.”

Her organization proposes scattering sand-like glass microspheres on ice to make new ice more reflective — like multi-year ice naturally is — and thus more resistant to melting as rapidly as it does now, Field said.

The North Pole as seen on Aug. 19, 2020, from the RV Polarstern, the German icebreaker at the centre of the MOSAiC expedition. Project leader Markus Rex told What on Earth they were able to reach the geographic North Pole because of large openings in sea ice that would normally make shipping in the region above Greenland too difficult. (Markus Rex/Alfred Wegener Institute via AP)

But Twila Moon believes that for all the good intentions, geoengineering isn’t the right way to save the ice. Instead, she said the focus should be on cutting harmful emissions. 

“In the case of sea ice, if we were to actually manage to reduce warming and begin to see cooling at some future time, we could actually grow that sea ice back,”  Moon said. 

“Climate is something that can feel out of our control, but is in fact very much directly connected with human action. So we have our hands on that knob.”

Listen to What on Earth on CBC Radio 1 every Sunday at 12:30 p.m., 1 p.m. in Newfoundland.

You can also subscribe to What on Earth on Apple Podcasts, Google Play or wherever you get your podcasts. You can also listen anytime on CBC Listen.

Follow the show on Twitter @cbcwhatonearth


Source link

Today news
Today News 1 runs four of the western GTA’s most influential media websites, offering news, food, lifestyle and entertainment coverage for millions to the Golden Horseshoe and GTA regions. The independently-run, online news source was founded in 2019 and specializes in everything from breaking news to food and restaurant, arts and entertainment and lifestyle coverage.


Please enter your comment!
Please enter your name here

- Advertisment -

Most Popular

TIFF 2021: Oscar Peterson documentary, Cannes-winning Titane added to lineup

Cannes-winning horror sensation Titane and a documentary on the late Canadian jazz legend Oscar Peterson are among the titles added to the Toronto International...

Alberta ranchers face difficult decisions as drought drags on

Alberta ranchers hit hard during the pandemic last year are now dealing with drought conditions that are devastating vital grazing land and taking both a financial and...

Apple TV+ debuting Broadway’s Come From Away on eve of 9/11 anniversary

Come From Away is landing on Apple TV+ in September. The streaming service says a live filmed version of the Tony-winning musical will...

‘More than just a concert’: Vox Popular records musical performances for upcoming festival

Eight Thunder Bay musicians and bands will get some time in the spotlight at an upcoming media arts festival. The Vox Popular...

Recent Comments