Ice-sheet and sea-level changes

Richard B. Alley, Peter U. Clark, Philippe Huybrechts, Ian Joughin

Research output: Contribution to journalReview articlepeer-review

433 Scopus citations

Abstract

Future sea-level rise is an important issue related to the continuing buildup of atmospheric greenhouse gas concentrations. The Greenland and Antarctic ice sheets, with the potential to raise sea level ∼70 meters if completely melted, dominate uncertainties in projected sea-level change. Freshwater fluxes from these ice sheets also may affect oceanic circulation, contributing to climate change. Observational and modeling advances have reduced many uncertainties related to ice-sheet behavior, but recently detected, rapid ice-marginal changes contributing to sea-level rise may indicate greater ice-sheet sensitivity to warming than previously considered.

Original languageEnglish (US)
Pages (from-to)456-460
Number of pages5
JournalScience
Volume310
Issue number5747
DOIs
StatePublished - Oct 21 2005

All Science Journal Classification (ASJC) codes

  • General

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