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Nature 432, 684-685 (9 December 2004) | doi:10.1038/432684a; Published online 8 December 2004
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Climate change: Tropical flip-flop connections
John C. H. Chiang1 & Athanasios Koutavas2
Abstract
A long climatic record shows that episodic wet periods in northeastern Brazil are linked to distant climate anomalies. The ocean–atmosphere system can evidently undergo rapid and global reorganization.
Every few years, the semi-arid but densely populated region of northeastern Brazil experiences severe drought. In 1997–98, exacerbated by poor distribution of resources, such an event caused great hardship.
- John C. H. Chiang is in the Department of Geography and Center for Atmospheric Sciences, 507 McCone Hall, University of California, Berkeley, California 94720-4740, USA.
e-mail: Email: jchiang@atmos.berkeley.edu - Athanasios Koutavas is at the Lamont–Doherty Earth Observatory of Columbia University, Palisades, New York 10964, USA.
e-mail: Email: athan@ldeo.columbia.edu
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