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Global warming to keep driving winds poleward, deep sea dust suggests

Global warming to keep driving winds poleward, deep sea dust suggests

Science
Jan. 6 (UPI) -- New analysis of dust grains dredged from the bottom of the North Pacific suggests the westerlies moved toward the poles during the warmest stretches of the Pliocene, between 3 and 5 million years ago. Scientists on Wednesday published their findings in the journal Nature. Advertisement The westerlies, sometimes called the anti-trades, are a series of prevailing winds blowing from west to east across the middle latitudes. Over the last several decades, scientists have noticed the winds slowly migrating away from the equator, inching into higher and higher latitudes. "Much of the work that has been done in describing changes to the westerlies over the last several decades suggests that warming caused by greenhouse gases may be a major contributor to this movement of the wes...