Arctic

Arctic shipping will be much cheaper, but it won't be possible year-round

The Crystal Serenity, the luxury cruise ship that took passengers up into the Arctic for $22,000 at the low end, has successfully transited the fabled Northwest Passage.

The National Snow and Ice Data Center, which tracks sea ice daily, had this to say about the accomplishment: "This is the largest ship thus far to navigate the Northwest Passage and is accompanied by an icebreaker ship and two helicopters. The ship sailed through the Northwest Passage in less than three weeks — 52 times faster than Amundsen's nearly three-year voyage."

So it's official: The formerly remote Arctic is now open to summer cruise ships, and anyone can go along if they're willing to pay. To hear scientists tell it, this is only the beginning.

Cruises are one thing — but as Arctic sea ice melts and covers less of the ocean for less of the year, all kinds of maritime incursions will be developed. Most significant, perhaps, is shipping — being able to use the Arctic could save a great deal of time and money for companies currently using the Panama and Suez canals for transit between Asia and the United States, or Asia and Europe.

In a new study in the journal Geophysical Research Letters, a team of researchers from the University of Reading in England used climate models to present a highly detailed analysis of how open the Arctic will become to shipping routes circa 2050 and 2100. And the answer is quite open, depending of course on precisely how much greenhouse gas we actually emit in this century.

For the moment, Arctic shipping is growing but remains a bit of a niche activity, explained Nathanael Melia, the study's lead author. "What we've seen over the last 10 years is that shipping companies have been doing some test voyages," Melia said. (The work was co-authored with two other colleagues, Ed Hawkins and Keith Haines.)

[Related: As a luxury cruise ship comes to town, Nome confronts its future]

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But the new study finds that for different greenhouse-gas emissions scenarios, and for different types of ships — some standard open-water vessels, some ice-strengthened vessels — the opportunity for using swifter Arctic routes could greatly increase.

The study in particular considered shipping to Yokohama, Japan, from either Rotterdam — a key European port — or New York, a key U.S. one. At present, the route from Europe would tend to use the Suez Canal and take about 30 days, and the route from New York would use the Panama Canal and take about 25.

But if the European-Asian trip instead used the Northern Sea Route, along the north coast of Russia, the trip could be cut to 18 days, and the distance would shrink from 11,580 nautical miles to 6,930 nautical miles. For the U.S.-Asian trip, meanwhile, using the Northwest Passage, through the Canadian archipelago, could take 21 days, rather than 25.

Clearly, then, there are savings to be gained here, ice permitting.

And there's little doubt that in the future, the Arctic will have even less sea ice than it does now, especially in the low-ice month of September.

But precisely how little ice will still depend on how much we heat the planet — whether we achieve something like a (very difficult) Paris policy of limiting warming to below 2 degrees Celsius above preindustrial levels, or whether we let it rip and continue high levels of emissions throughout the century.

Change will come gradually at first, Melia said.

"Initially, the Northwest Passage, say for the next 15 or so years, can be navigated every now and again, but it's pretty unreliable, and it can end up taking longer," he said, referring to September trips for open-water vessels, rather than ice-specialized ships. "So that route, at the moment, is a real specialist route."

Even in a low-emissions scenario, Melia said his study forecasts a "twofold increase in the prospect of these routes becoming open" by the middle of the century (again, in September and for standard open-water ships). But if we're really going for broke with emissions, the expansion is even more dramatic, and by the middle of the century, we could even see nonice-strengthened ships going straight over the pole.

Granted, we won't move into this world immediately, nor will it be the case that shipping through the Arctic will be available year-round — it will still have seasonal constraints.

The dark polar night during winter will still be very cold, and the seas in winter will still be full of ice. So business models may have to adjust to shipping sometimes through the Arctic and sometimes through the established canals.

But that doesn't change the punch line — more navigation will be coming, simply because it can. "There's going to be a lot more potential for ships up there," Melia said.

 
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