The altitude, low temperatures and lack of sunlight (at least during the Antarctic winter) make the atmosphere at the pole ideal for star-gazing.

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The seasonal increase results from tons of carbon dioxide, which had been frozen into a southern winter ice cap, returning into the atmosphere as southern spring turns to summer.

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There is a relaxed, nonhierarchical atmosphere as the seven young managers of the "WebDVD" group, all in the standard winter uniform of khakis and flannel shirts, gather in a windowless conference room near Gates' office.

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