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Shipowners and others interested in navigating the Northern Sea Route should refer to refer to the Northern Sea Route Administration website

IHOArctic Regional Hydrographic Commission (ARHC) coordinates hydrographic activity and cooperation at the regional level. The RHCs are made up of IHO Member States together with other regional States that wish to participate. RHCs work in close harmony with the Organization to help further its ideals and program. RHCs meet at regular intervals to discuss such things as mutual hydrographic and chart production problems, plan joint survey operations, and resolve schemes for medium and large scale International Chart coverage in their regions.

Below Zero: The art of icebreaking - an article written by Chief Petty Officer David Mosley for the US Coastguard blog shows how an icebreaker creates a channel through ice.