Sejl hen over Nordpolen om 40 år

Fortsætter den global opvarmning i det nuværende spor, vil det omkring 2050 være muligt at sejle hen over Nordpolen. Det vurderer to amerikanske forskere, der netop har fået deres analyse offentliggjort i det anerkendte Proceedings of the National Academy of Sciences.

Foto: Skibsfotografen.

"Det er en lille smule bekymrende", siger Laurence C. Smith, havisekspert ved University of California, Los Angeles til NBC News.

Smith er en af de to forskere bag undersøgelsen, der er baseret på, at kendte data er kodet ind i en klimamodel, for at forudsige udviklingen i ismasserne i Arktis de kommende 50 år.

Undersøgelsen gentager det andre undersøgelser allerede har vist, nemlig at det i et stigende antal måneder om året vil være muligt at sejle langs kanten af hhv. Nordøst- og Nordvestpassagen.

Det nye er, at det angiveligt også vil være muligt, at sejle tværs hen over Nordpolen i et såkaldt Polar Class 6 vessel.

Ifølge Lawson Brigham, professor i geografi og arktiske politik ved University of Alaska, i

Fairbanks, vil det formentlig være store bulkskibe lastet med råvarer, der som de første vil gøre brug af muligheden, da de ikke vil være under tidspres på samme måde som f.eks. containerskibe-

Kilde: Proceedings of the National Academy of Sciences.

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