Prince Albert II, of Monaco, has announced first details of the World Sky Race—a race around the world by airships (blimps, dirigibles, and zeppelins). Winner's prize: $5 million. Explorers Club member Prince Albert, Google co-founder Serge Brin, and Iron Maiden front man Bruce Dickinson are all among the world figures who now see airships as a way to reduce global warming: Airships are the greenest form of aviation. They need far less fuel to fly than comparable aircraft, and they leave only a tiny carbon footprint.
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