Abstract
GLOBAL compilations of tide records indicate that sea level has been rising throughout the twentieth century1,2, with potentially dangerous consequences for low-lying coastal regions. Thermal expansion of ocean water3 and melting of alpine glaciers4 in response to increased atmospheric temperatures may have been responsible for some of this change, but human activities can also influence sea level directly. For example, the rise in sea level would have been even larger5 if large quantities of water had not been stored in reservoirs, and channelled into aquifers by irrigation projects. Here we show, however, that these and other human activities have together caused a net increase in sea levels over the past century. We estimate that a combination of groundwater withdrawal, surface water diversion and land-use changes has caused at least a third of the observed rise, and suggest that the contributions of climate-related effects must therefore be smaller than has been previously supposed.
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References
Peltier, W. R. & Tushingham, A. M. J. geophys. Res. 96, 6779–6804 (1991).
Gornitz, V. & Lebedeff, S. in Sea-Level Fluctuation and Coastal Evolution (eds Nummedal, D., Pilkey, O. H. & Howard, J. D.) 3–16 (Soc. Econ. Paleont. Miner, Tulsa, 1987).
Roemmich, D. Science 257, 373–375 (1992).
Meier, M. F. Science 226, 1418–1421 (1984).
Newman, W. S. & Fairbridge, R. W. Nature 320, 319–321 (1986).
Hay, W. & Leslie, M. in Sea Level Change (ed. Revelle, R.) 161–170 (Geophys. Study Committee, National Research Council, Washington DC, 1990).
Jacobs, D. K. & Sahagian, D. L. Nature 361, 710–712 (1993).
Weeks, J. & Gutentag, E. in Hydrogeology (eds Back, W., Rosenshein, J. & Seaber, P.) 157–164 (Geol. Soc. Am., Boulder, 1988).
Nativ, R. Envir. Geol. Water Sci. 19, 21–32 (1992).
Anderson, T., Welder, G., Lesser, G. & Trujillo, A. in Hydrogeology (eds Back, W., Rosenshein, J. & Seaber, P.) 81–86 (Geol. Soc. Am., Boulder, 1988).
Farrar, C. & Bertoldi, G. in Hydrogeology (eds Back, W., Rosenshein, J. & Seaber, P.) 59–68 (Geol. Soc. Am., Boulder, 1988).
Balek, J. Hydrology and Water Resources in Tropical Africa 1–208 (Elsevier, New York, 1977).
Kehinde, M. & Loehnert, E. J. Afr. Earth Sci. 9, 179–185 (1989).
Castany, G. Episodes 15, 18–22 (1981).
Al-Ibrahim, A. A. Ambio 20, 34–37 (1991).
Al-Saleh, M. A. Geogrl J. 158, 215–222 (1992).
Kotlyakov, V. M. Environment 33, 4–9 (1991).
Micklin, P. Post-Sov. Geogr. 33, 269–282 (1992).
Bond, A. R. Sov. Geogr. 32, 516–518 (1991).
Rodionov, S. N. Sov. Geogr. 31, 265–275 (1990).
Golitsyn, G., Dzyuba, A., Osipov, A. & Panin, G. Dokl. Akad. Nauk SSSR 313, 1224–1227 (1990).
Lo, H. & Sene, A. Int. Soc. Sci. J. 41, 449–456 (1989).
Rohrig, E. in Ecosystems of the world (ed. Ulrich, E.) 165–174 (Elsevier, New York, 1991).
Aldhous, P. Science 259, 1390 (1993).
Mitsch, W. & Gosselink, J. Wetlands (Van Nostrand Reinhold, New York, 1986).
Mitchell, G. J. in Wetland Creation and Restoration: The Status of the Science (eds Kusler, J. & Kentula, M.) ix–x (Island, Washington DC, 1990).
Wingham, D., McCormick, J., Good, R. & Simpson, R. in Freshwater Wetlands: Ecological Processes and Management Potential (eds Good, R., Wingham, D. & Simpson, R.) 3–20 (Academic, New York, 1978).
Newman, W. & Fairbridge, R. Nature 320, 319–321 (1986).
Meier, M. Nature 343, 115–116 (1990).
Tilsley, J. Major Dams, Reservoirs, and Hydroelectric Plants—Worldwide (US Dept of Interior, Bureau of Reclamation, Denver, 1983).
Trupin, A. & Wahr, J. Geophys. J. Int. 100, 441–453 (1990).
Fairbridge, R. & Krebs, O. Geophys. J. R. astr. Soc. 6, 532–545 (1962).
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Sahagian, D., Schwartz, F. & Jacobs, D. Direct anthropogenic contributions to sea level rise in the twentieth century. Nature 367, 54–57 (1994). https://doi.org/10.1038/367054a0
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DOI: https://doi.org/10.1038/367054a0
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