A new scientific study suggests that climate change could dramatically reshape Antarctica – potentially exposing vast mineral resources beneath the ice. The findings are already fueling geopolitical debate, as a long-standing international mining ban could be revisited within decades.
The research, published in Nature Climate Change, indicates that large areas of the frozen continent may lose their ice cover over the coming centuries. As the ice retreats, deposits of copper, iron, gold, silver, platinum and cobalt could become accessible.
The timing is sensitive. Under the Antarctic Treaty system, mining is currently prohibited, but signatory states will be able to propose changes to the ban from 2048.
Large ice-free areas projected
Today, less than 0.6 per cent of Antarctica is ice-free, mainly along coastal zones, mountain ranges and steep cliffs. However, some regions are already warming at twice the global average.
According to the study, between 36,000 and 120,000 square kilometres could become ice-free by the year 2300, depending on how global warming evolves.
– We modelled how much land could become ice-free and how this overlaps with known mineral deposits, says Erica Lucas, researcher at the University of California, Santa Cruz, and co-author of the study, in comments to dnyuz.com.
Two regions stand out in particular – the approximately 1,300-kilometre-long Antarctic Peninsula and the roughly 3,200-kilometre-long Transantarctic Mountains, which divide the continent into eastern and western parts.
Copper could become a key resource
On the Antarctic Peninsula alone, between 12 and 25 million tonnes of copper could become accessible if ice retreat continues. By comparison, global demand currently stands at around 28 million tonnes per year and is expected to rise to 42 million tonnes by 2040, according to S&P Global.
The geological background supports the assumption of significant deposits. Around 180 million years ago, Antarctica was part of the supercontinent Gondwana, connected to Africa, Australia and South America – all regions rich in mineral resources today.
– Because Antarctica shares a similar geological structure, it is reasonable to assume that comparable deposits exist there, says Erica Lucas.
Major obstacles to extraction
Despite the potential, experts caution that mining in Antarctica remains highly uncertain. Practical and economic barriers are considerable.
– It is an extremely remote continent with no ports or road infrastructure, which makes mining exceptionally difficult, says Tony Press from the University of Tasmania.
He also notes that climate change may make surrounding waters more hazardous, with increased iceberg activity complicating shipping.
Evan Bloom, former head of Antarctic diplomacy at the US State Department, also downplays expectations.
– There may be some opportunities as ice decreases, but Antarctica remains a very remote place, he says.
At the same time, the issue is politically sensitive. The Antarctic Treaty of 1959 froze territorial claims and banned mining activities. However, the possibility of renegotiation from 2048 raises the prospect of future disputes over resources.
For now, Antarctica remains protected and largely reserved for scientific research and tourism. But as ice continues to retreat, pressure to exploit the continent’s hidden resources could grow.
Source: Nature Climate Change, dnyuz.com
Fact check:
Antarctica is governed by an international treaty system that prohibits mining. The ban can be reviewed from 2048, making future resource exploitation a growing geopolitical issue.
