Journal
SCIENCE
Volume 315, Issue 5820, Pages 1838-1841Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1138396
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Funding
- Directorate For Geosciences [0814241] Funding Source: National Science Foundation
- Directorate For Geosciences
- Office of Polar Programs (OPP) [0917509] Funding Source: National Science Foundation
- Office of Polar Programs (OPP) [0814241] Funding Source: National Science Foundation
- Office of Polar Programs (OPP)
- Directorate For Geosciences [0809106] Funding Source: National Science Foundation
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Sedimentation filling space beneath ice shelves helps to stabilize ice sheets against grounding-line retreat in response to a rise in relative sea level of at least several meters. Recent Antarctic changes thus cannot be attributed to sea-level rise, strengthening earlier interpretations that warming has driven ice-sheet mass loss. Large sea-level rise, such as the approximate to 100-meter rise at the end of the last ice age, may overwhelm the stabilizing feedback from sedimentation, but smaller sea-level changes are unlikely to have synchronized the behavior of ice sheets in the past.
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