Arctic could be ice-free in as little as ten years' time

Posted By: Staff
Subscribe to Oneindia News

London, October 15 (ANI): A top Polar specialist has warned that the Arctic Ocean could be largely ice-free and open to shipping during the summer in as little as ten years' time.

"It's like man is taking the lid off the northern part of the planet," Professor Peter Wadhams, from the University of Cambridge, told BBC News.

His warning is based on the findings of the Catlin Arctic Survey, which covered 435 km of Arctic ice earlier this year.

Led by explorer Pen Hadow, the team's measurements found that the ice floes were on average 1.8m thick - typical of so-called "first year" ice formed during the past winter and most vulnerable to melting.

The survey route - to the north of Canada - had been expected to cross areas of older "multi-year" ice which is thicker and more resilient.

When the ridges of ice between floes are included, the expedition found an average thickness of 4.8m.

According to Professor Wadhams, "The Catlin Arctic Survey data supports the new consensus view - based on seasonal variation of ice extent and thickness, changes in temperatures, winds and especially ice composition - that the Arctic will be ice-free in summer within about 20 years, and that much of the decrease will be happening within 10 years."

"That means you'll be able to treat the Arctic as if it were essentially an open sea in the summer and have transport across the Arctic Ocean," he said.

Professor Wadhams said that faster shipping and easier access to oil and gas reserves were among short-term benefits of the melting.

But in the longer-term, losing a permanent feature of the planet risked accelerated warming, changing patterns of circulation in the oceans and atmosphere, and having unknown effects on ecosystems through the acidification of waters. (ANI)

Please Wait while comments are loading...