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Science 28 September 2007:
Vol. 317. no. 5846, p. 1866
DOI: 10.1126/science.1140942
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Technical Comments

Comment on "A Semi-Empirical Approach to Projecting Future Sea-Level Rise"

Simon Holgate,1* Svetlana Jevrejeva,1 Philip Woodworth,1 Simon Brewer2

Rahmstorf (Reports, 19 January 2007, p. 368) presented an approach for predicting sea-level rise based on a proposed linear relationship between global mean surface temperature and the rate of global mean sea-level change. We find no such linear relationship. Although we agree that there is considerable uncertainty in the prediction of future sea-level rise, this approach does not meaningfully contribute to quantifying that uncertainty.

1 Permanent Service for Mean Sea Level, Proudman Oceanographic Laboratory, 6 Brownlow Street, Liverpool, L3 5DA, UK.
2 Cemagref, CS 40061, 13182 Aix-en-Provence Cedex 5, France.

* To whom correspondence should be addressed. E-mail: simonh{at}pol.ac.uk

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Science. ISSN 0036-8075 (print), 1095-9203 (online)