Instrumental records show that El Niño is highly variable in space and time. Now a thousand-year-long record from trees in the southwestern United States reveals even greater extremes, and a possible link between El Niño activity and climate warming.
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© 2004 DANIEL GRIFFIN
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Therrell, M. Ancient trees reveal their secrets. Nature Clim Change 1, 94–95 (2011). https://doi.org/10.1038/nclimate1095
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DOI: https://doi.org/10.1038/nclimate1095
