The North and South Hemispheres often fall out of step with each other, sometimes briefly moving in opposite climatic directions.
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Monastersky, R. 1997. The big chill. Science News 152(Oct. 4):220.
University of Bern
Climate and Environmental Physics
James W.C. White
University of Colorado
Institute of Arctic and Alpine Research
Campus Box 450
Boulder, CO 80309
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