Global warming is pushing edges of tropics towards poles: study - Yahoo! News: "The greenhouse effect is causing Earth's zone of tropical climate to creep towards the poles, according to a study whose release on Sunday coincided with the eve of a major UN conference on climate change.
The poleward expansion of the tropics will have far-reaching impacts, notably in intensifying water scarcity in the Mediterranean and the US 'Sun belt' as well as southern Africa and southern Australia, it warns."
Sunday, December 2, 2007
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