Melting polar ice opens ship route

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The record shrinking of the polar ice cap is turning the forbidding waters at the top of the world into important new shipping routes. Four cruise ships also docked recently in Nome, Alaska. Nome's ship traffic is eight times what it was in 1990 and the town recently spent close to $90 million renovating its port to accommodate bigger ships.

The shipping boom has intensified concerns about how to regulate maritime operations and protect one of the most fragile and least-understood environments on Earth.

Click here for a report by The Los Angeles Times.

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