Science: Towing Icebergs

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These and other questions apparently did not cool Prince Faisal's ardor for the idea. He went so far as to predict confidently that he would have an iceberg in Arabia within three years. He had already succeeded in delivering a berg of sorts to Iowa, which had not seen one since the last glacier retreated, some 12,000 years ago. To dramatize his plan, the prince spent $5,000 to transport—by helicopter, plane and truck—a mini-berg of clear blue ice from Alaska's Portage Glacier to the conference, where it was chopped up and used for the delegates' drinks.

* Antarctic bergs are broad, flat and better suited for towing than Arctic ones, which are mountain-shaped and irregular.

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