Canary Workers’ Co-op Canary Workers’ Co-op

Antarctica ice platform nearly four times size of UK ‘at risk of collapse’

A platform of ice surrounding Antarctica which is nearly four times the size of the UK is at risk of collapse, according to a new study.

It suggests that more than 350,000 square miles of floating ice shelves could split if fractures on their surface are submerged due to the effects of climate change. Such a sudden loss of the supportive structures could raise sea levels around the world.

A team involving geoscientists from the University of Edinburgh used a process called hydrofracturing to analyse satellite images of the area.

Map of Antarctica
A map of Antarctica with the vulnerable areas of ice shelf marked in red (Nature 2020/PA)

Dr Martin Wearing, of the university’s School of GeoSciences, was among those taking part in the study.

He said: “We’ve seen in the past that the sudden collapse of ice shelves can trigger rapid acceleration of the glaciers that flow into them, and, in turn, sea-level rise.

Read on...

“We have found that stresses within vast sections of Antarctica’s ice shelves are sufficiently large that they could collapse if, as climate models predict, surface melting increases substantially in coming years.

“We hope our use of machine learning is a first step towards further applications of AI (artificial intelligence) in the analysis of the ever-growing quantity of data from the polar regions.”

Ice
Increased surface melting from the weight of the water could enlarge fractures, according to the team (Martin Wearing/PA)

The findings suggest around 60% of the ice-shelf area supporting the main sheet is vulnerable.

Increased surface melting from the weight of the water could enlarge fractures in these sections, according to the team.

The study, published in the journal Nature, was led by researchers from Columbia University in the US.

It also involved Utrecht University and Google, with the work supported by the National Science Foundation and the Dutch Research Council.

We’re a thorn in the side of the establishment, but we can’t do it without your help

Your fight is our fight. But as many of you will know, speaking truth to power has never been easy, especially for a small, independent media outlet such as the Canary. We have weathered many attempts to silence our vital opposition to an increasingly fascist government and right-wing mainstream media. Now more than ever, we need your support.

We don’t have fancy offices, and our entire staff works remotely. Almost all of our income is spent on paying the people who make the Canary’s content. So your contribution directly supports our team and enables us to continue to do what we do: disrupt power, and amplify people.

But we can’t do this without you. So please, if you appreciate our work, can you help us continue the fight?

Canary Workers’ Co-op Support us