Exhaust gases from shipping already brighten clouds over various bits of the ocean, and in so doing are thought to cool the Earth appreciably.

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From the depths of the ocean to somewhere way up in the clouds, Bioshock has given us a new wonky city to explore, Columbia.

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But, even a tiny warming of the huge Southern Ocean must increase the amount of moisture in the air around Antarctica which can only result in more clouds and snow over the continent.

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