Polar Icebreakers in a Changing World An Assessment of U.S. Needs (2007) / Chapter Skim
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11 Findings and Recommendations
11 Findings and Recommendations
Pages 95-102
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From page 95... ...
Summer sea-ice extent is expected to con tinue to retreat over the next several decades, creating more ICEBREAKING NEEDS IN THE ARCTIC broken ice along the Alaskan coastline. This may increase The United States has territory and citizens that perma- the need to break ice of differing thicknesses, requiring an nently reside above the Arctic Circle, creating significant icebreaker that can navigate the thickest ice encountered.
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From page 96... ...
Ice conditions on the final 12 miles of the sea appeaceful purposes, furthering scientific knowledge, and pre- proach are typically challenging due to the presence of thick, serving and protecting one of the most pristine environments multiyear ice. During the past six years, the break-in through on the globe.
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From page 97... ...
Despite these changes in logistics, the NSF NSF contracted the services of the Russian icebreaker subcommittee concluded that shipborne resupply, supported KRASIN, operated by the Far East Shipping Company to by icebreakers that can reliably break the required channel assist the POLAR STAR. into McMurdo Station dock, remains the best mode of logis Concerned about the reliability of POLAR STAR, NSF tics for the USAP.
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From page 98... ...
Assured access to the polar regions polar regions have been found to react acutely to fluctua- is therefore a key tenet: The United States needs to maintain tions in climate and temperatures. The 40 percent reduction a national capability to break heavy, multiyear ice in the in Arctic sea-ice thickness over the past four decades is one northern and southern polar regions.
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From page 99... ...
Coast Guard missions including search and pabilities will greatly increase in both polar regions. When rescue, sovereignty, presence, and law enforcement, HEALY used in conjunction with the polar icebreakers, research ships cannot operate independently in the ice conditions of the will be able to venture into waters that they could not safely central Arctic and McMurdo Sound.
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From page 100... ...
The benefits of constructing a new ship were comfront decision to build two new polar icebreakers will allow pared to overhauling and extending the life of POLAR STAR economies in the design and construction process and pro- or POLAR SEA. A so-called service life extension program vide a predictable cost reduction for the second ship.
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From page 101... ...
lieves that management responsibility should be aligned with icebreaking capabilities, the POLAR SEA should remain management accountability. mission capable and the POLAR STAR should remain When NSF, NOAA, or another "user" agency employs available for reactivation until the new polar icebreakers a U.S.
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From page 102... ...
the ice-covered waters of the Arctic needs to be reaffirmed. The polar icebreaker fleet has been described as a national Recommendation 7: Polar icebreakers are essential asset that is capable of meeting multiple missions.
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