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Continental runoff: a quality-controlled global runoff data set.

Peel MC, McMahon TA

Department of Civil & Environmental Engineering, University of Melbourne, Victoria, 3010, Australia.

Gedney et al. attribute an increase in the twentieth-century continental runoff to the suppression of plant transpiration by CO2-induced stomatal closure, by replicating a continental runoff data set. However, we have concerns about this data set and the methods used to construct it, in addition to those already raised, which we believe may undermine their conclusions.

Published 7 December 2006 in Nature, 444(7120): E14; discussion E14-5.
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