Technical Comments

Comment on “A 12-million-year temperature history of the tropical Pacific Ocean”

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Science  19 Dec 2014:
Vol. 346, Issue 6216, pp. 1467
DOI: 10.1126/science.1257618


Zhang et al. (Reports, 4 April 2014, p. 84) interpret TEX86 and Embedded Image paleotemperature data as providing a fundamentally new view of tropical Pacific climate during the warm Pliocene period. We argue that, within error, their Pliocene data actually support previously published data indicating average western warm-pool temperature similar to today and a reduced zonal gradient, referred to as a permanent El Niño–like state.

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