Arctic sea ice still too thick for regular shipping route through Northwest Passage

September 29, 2015

But, wait. I thought all the polar ice was vanishing because of warming that hasn’t been happening for 18 years — and counting. I’m so confused! Enlighten me, Al Gore!

Watts Up With That?

From YORK UNIVERSITY and the “paging Dr. Peter Wadhams” department…

Northwest_passage[1] Northwest passage routes. Stock Image: Wikipedia TORONTO, September 29, 2015  – Despite climate change, sea ice in the (NWP) remains too thick and treacherous for it to be a regular commercial Arctic shipping route for many decades, according to new research out of York University.

Prior to this research, there was little information about the thickness of sea ice in the NWP, which meanders through the Canadian Arctic Archipelago. Yet, next to ice coverage and type, sea ice thickness plays the most important role in assessing shipping hazards and predicting ice break-up.

“While everyone only looks at ice extent or area, because it is so easy to do with satellites, we study ice thickness, which is important to assess overall changes of ice volume, and helps to understand why and where the ice is most vulnerable to summer melt,”…

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About that vanishing ice cap

August 3, 2009

Global warming alarmists often tell us that the crisis is so great that we may soon see the north polar ice cap vanish.  (Natural cycle? Nah…) Try telling that to ships navigating the Northwest Passage, however:

Ice choking Northwest Passage: officials

Despite predictions from a top U.S. polar institute that the Arctic Ocean’s overall ice cover is headed for another “extreme” meltdown by mid-September, the Environment Canada agency monitoring our northern waters says an unusual combination of factors is making navigation more difficult in the Northwest Passage this year after two straight summers of virtually clear sailing.

In both the wider, deep-water northern corridor and the narrower, shallower southern branches of the passage, the Canadian Ice Service says pockets of more extensive winter freezing and concentrations of thicker, older ice at several key “choke points” are complicating ship travel.

via Larwyn.

LINKS: More at Watt’s Up With That?

UPDATE: Fixed broken link to the article about the Northwest Passage.