Scientists studying the region are divided over how much of the temperature shift is due to the region's large natural variations and how much is being driven by the global buildup of carbon dioxide and other heat-trapping greenhouse gases, like those emitted by tailpipes.
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Ais being driven by the global buildup of carbon dioxide and other heat-trapping greenhouse gases, like
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Bthe global buildup of carbon dioxide and other heat-trapping greenhouse gases drive, such as
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Cthe global buildup of carbon dioxide and other heat-trapping greenhouse gases drive, like
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Dis driven by the global buildup of carbon dioxide and other heat-trapping greenhouse gases, such as
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Eis being driven by the global buildup of carbon dioxide and other heat-trapping greenhouse gases, such like
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正确答案: D