New study shows that the Northern Hemisphere has experienced considerably larger variations in precipitation during the past twelve centuries than in the twentieth century. Researchers have found that climate models overestimated the increase in wet and dry extremes during the twentieth century

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New study shows that the Northern Hemisphere has experienced considerably larger variations in precipitation during the past twelve centuries than in the twentieth century. Researchers have found that climate models overestimated the increase in wet and dry extremes during the twentieth century