Technical Comments

Response to Comment on "Climate-Driven Ecosystem Succession in the Sahara: The Past 6000 Years"

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Science  28 Nov 2008:
Vol. 322, Issue 5906, pp. 1326
DOI: 10.1126/science.1163483

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The Lake Yoa record and archaeological data provide adequate evidence that mid-Holocene aridification did not occur abruptly across all of North Africa. Modeling results on the issue of abrupt versus gradual desiccation of the Sahara are sufficiently diverse that paleoecological data from a continuous natural archive can usefully guide the evaluation of model parameters responsible for this diversity.

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