Abrupt climate change

Science

Volumn 299, Issue 5615, 2003, Pages 2005-2010

  Alley, R B ^a   Marotzke, J ^b   Nordhaus, W D ^c   Overpeck, J T ^d   Peteet, D M ^e   Pietke Jr , R A ^f   Pierrehumbert, R T ^g   Rhines, P B ^h   Stocker, T F ⁱ   Tattey, L D ^j   Wallace, J M ^h  

^a PENNSYLVANIA STATE UNIVERSITY   (United States)

^b UNIVERSITY OF SOUTHAMPTON   (United Kingdom)

^c YALE UNIVERSITY   (United States)

^d UNIVERSITY OF ARIZONA   (United States)

^e L D Earth Observ Columbia Univ ^*  (United States)

^f UNIVERSITY OF COLORADO   (United States)

^g UNIVERSITY OF CHICAGO   (United States)

^h UNIVERSITY OF WASHINGTON   (United States)

ⁱ UNIVERSITY OF BERN   (Switzerland)

^j UNIVERSITY OF CALIFORNIA   (United States)

more..

Author keywords

[No Author keywords available]

Indexed keywords

CLIMATOLOGY; EARTH (PLANET); ECOSYSTEMS; ENVIRONMENTAL IMPACT;

ECOLOGICAL IMPACTS;

CLIMATE CHANGE;

ANTHROPOGENIC EFFECT; CLIMATE CHANGE; ECONOMIC IMPACT; ENVIRONMENTAL IMPACT; IMPACT;

CLIMATE CHANGE; ECOLOGY; ECONOMIC ASPECT; EVOLUTION; GLOBAL CLIMATE; HISTORY; PREDICTION; PRIORITY JOURNAL; REVIEW;

EID: 0037471002     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.1081056     Document Type: Review

References (74)

1. The United Nations Framework Convention on Climate Change can be viewed at http://unfccc.int/resource/conv/index.html.
2. The National Research Council (NRC) report Abrupt Climate Change: Inevitable Surprises (65) provides a more comprehensive treatment of abrupt climate change, with over 650 references. The members of the Panel on Abrupt Climate Change, which prepared the NRC report, are the authors of this review. The recommendations of the NRC report: Improve the fundamental knowledge base, modeling, instrumental and paleoclimatic data, and statistical approaches related to abrupt climate change, and investigate "noregrets" strategies to reduce vulnerability. The report is available at http://books.nap.edu/books/0309074347/html/l.html#pagetop.
3. 2 (66).
4. W. S. Broecker, The Glacial World According to Wally (Eldigio, Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY, ed. 3, 2002).
5. 2O), and perhaps in other factors (4).
6. T. F. Stocker, Quat. Sci. Rev. 19, 301 (2000).
7. T. Delworth, T. R. Knutson, Science 287, 2246 (2000).
8. J. Cappelen, "Yearly mean temperature for selected meteorological stations in Denmark, the Faroe Islands and Greenland; 1873-2001" (Tech. Rep. 02-06, Danish Meteorological Institute, Copenhagen, 2002); available at www.dmi.dk/f+u/publikation/tekrap/2002/Tr02-06.pdf.
9. D. R. Hurt, An Agricultural and Social Histoty of the Dust Bowl (Nelson Hall, Chicago, 1981).
10. C. A. Woodhouse, J. T. Overpeck, Bull. Am. Meteorol. Soc. 79, 2693 (1998).
11. S. E. Nicholson, C. J. Tucker, M. B. Ba, Bull. Am. Meteorol. Soc. 80, 815 (1998).
12. S. Hastenrath, L. Heller, Q. J. R. Meteorol. Soc. 103, 77 (1997).
13. N. J. Mantua, S. R. Hare, Y. Zhang, J. M. Wallace, R. C. Francis, Bull. Am. Meteorol. Soc. 78, 1069 (1997).
14. N. E. Graham, Clim. Dyn. 10, 135 (1994).
15. C. C. Ebbesmeier et al., in Proceedings of the Seventh Annual Pacific Climate Workshop, April 1990, J. L. Betancourt, V. L. Tharp, Eds. (California Department of Water Resources, Interagency Ecological Studies Program, Technical Report 26, 1991). pp. 115-126.
16. B. Dickson et al., Nature 416, 832 (2002).
17. K. B. Liu, C. M. Shen, K. S. Louie, Ann. Assoc. Am. Geogr. 91, 453 (2001).
18. F. Gasse, Quat. Sci. Rev. 19, 189 (2000).
19. C. T. Morrill, J. T. Overpeck, J. E. Cole, Holocene in press.
20. D. A. Hodell, J. H. Curtis, M. Brenner, Nature 375, 391 (1995).
21. H. Weiss et al., Science 261, 995 (1993).
22. J. P. Severfnghaus, T. Sowers, E. J. Brook, R. B. Alley, M. L. Bender, Nature 391, 141 (1998).
23. E. J. Brook, S. Harder, J. Severinghaus, M. Bender, in Mechanisms of Global Climate Change at Millennial Time Scales, P. U. Clark, R. S. Webb, L. D. Keigwin, Eds. (Geophysical Monograph 112, American Geophysical Union, Washington, DC, 1999), pp. 16S-176.
24. Y. J. Wang et al., Science 294, 2345 (2001).
25. North Atlantic records show a repeated pattern, often with ∼1500-year spacing, of abrupt warming followed by gradual cooling, abrupt cooling, and a few cold centuries. Generally cold, dry, and windy conditions occurred together across much of the Earth, although with antiphase behavior in some far southern regions. The anomalously mild times following the abrupt warmings are often called Dansgaard/Oeschger (DO) events, but here we follow some workers in referring to the DO oscillation, without necessarily implying strict periodicity (6). At least some of the cold phases immediately followed floods or ice-sheet surges into the North Atlantic (4), including a centennial cold event about 8200 years ago with widespread impacts (45) that immediately followed a large outburst flood from a lake dammed by the melting ice sheet in Hudson Bay (67).
26. H. Stommel, Tellus 13, 224 (1961).
27. W. D. Sellers, J. Appl. Meteorol. 8, 392 (1969).
28. E. N. Lorenz, J. Atmos. Sci. 20, 130 (1963).
29. J. Kutzbach, G. Bonan, J. Foley, S. Harrison, Nature 384, 623 (1996).
30. M. K. Biswas, A. K. Biswas, Eds., United Nations, Desertification (Pergamon, London, 1980).
31. D. L. Hartmann, J. M. Wallace, V. Limpasuvan, D. W. J. Thompson, J. R. Holton, Proc. Natl. Acad. Sci. U.S.A. 97, 1412 (2000).
32. S. Manabe, R. J. Stouffer, Paleoceanography 12, 321 (1997).
33. T. F. Stocker, Science 297, 1814 (2002).
34. This difficulty, lack of a globalizer, is shared with the standard explanation of global ice-age cooling by reduced Northern Hemisphere summer insolation from the relatively weak 100,000-year cyclicity of orbital forcing (4).
35. G. Bond et al., Science 294, 2130 (2001).
36. 2 in the ice-age events (6).
37. R. B. Alley, S. Anandakrishnan, P. Jung, Paleoceanography 16, 190 (2001).
38. J. M. Wallace, D. W. J. Thompson, Phys. Today 55, 28 (2002).
39. J. Marotzke, thesis, Berichte aus dem Institut fur Meereskunde, Kiel, Germany (1990).
40. K. L Polzin, J. M. Toole, J. R. Ledwell, R. W. Schmitt, Science 276, 93 (1997).
41. D. G. Streets, M. H. Glantz, Global Environ. Change 10, 97 (2000).
42. J. Reilly, D. Schimmelpfennig, Clim. Change 45, 253 (2000).
43. D. M. Peteet, Proc. Natl. Acad. Sci. U.S.A. 97, 1359 (2000).
44. W. Tinner, A. F. Lotter, Geology 29, 551 (2001).
45. R. B. Alley et al., Geology 25, 483 (1997).
46. D. M. Peteet et al., Quat. Res. 33, 219 (1990).
47. J. T. Overpeck, C. Whitlock, B. Huntley, in Paleoclimate, Global Change and the Future, K. Alverson, R. Bradley, T. Pedersen, Eds. (IGBP Synthesis Volume, Springer-Verlag, Berlin, 2003), pp. 81-111.
48. Ecosystems and economies can be forced across thresholds by gradual as well as by abrupt climate changes, causing major abrupt impacts, although faster forcing is probably more likely to cross impacts thresholds.
49. IPCC (Intergovernmental Panel on Climate Change), Climate Change 2001: Impacts, Adaptation, and Vulnerability. Report of Working Group II (Cambridge Univ. Press, Cambridge, UK, 2001); available at www.ipcc.ch.
50. R. Colwell, Science 274, 2025 (1996).
51. W. D. Nordhaus, J. Boyer, Warming the World: Economic Modeling of Global Warming (Massachusetts Institute of Technology, Cambridge, MA, 2000).
52. J. Reilly, N. Hohmann, S. Kane, Climate Change and Agriculture: Global and Regional Effects Using an Economic Model of International Trade (MIT-CEEPR 93-012WP, Center for Energy and Environmental Policy Research, Massachusetts Institute of Technology, Boston, 1993).
53. G. W. Yohe, M. E. Schlesinger, Clim. Change 38, 337 (1998).
54. K. Keller, K. Tan, F. M. M. Morel, D. F. Bradford, Clim. Change 47, 17 (2000).
55. W. S. Broecker, Science 278, 1582 (1997).
56. IPCC (Intergovernmental Panel on Climate Change), Climate Change 2001: The Science of Climate Change. Report of Working Group I (Cambridge Univ. Press, Cambridge, UK, 2001); available online at www.ipcc.ch.
57. One prominent warm interval was the Paleocene-Eocene Thermal Maximum (68), which began with warming over perhaps 10,000 to 20,000 years or faster of about 4° to 8°C in high-latitude ocean surface temperatures and 4° to 6°C in bottom-water temperatures from conditions that were already warmer and with an equator-to-pole temperature gradient that was smaller than occurred recently. A change in location of deep-water formation may have led to massive destabilization of methane hydrate in sea-floor sediments. Impacts included extinction of 30 to 50% of benthic foraminifera and subtropical drying.
58. Freshening may be arising from one or more processes, including increased high-latitude precipitation or fraction of precipitation running off the land (69), melting of sea or land ice, or changes in wind-driven or other exchange with the Arctic Ocean; the complexity is challenging for modern observations and models (16).
59. Seager et al. (70) emphasized that the relative warmth of the northeastern versus northwestern Atlantic arises only in part from the thermohaline circulation; thus, any discussions of the possible effects of a thermohaline shutdown that cite the Norway-Canada difference may be overstated. Nonetheless, the thermohaline circulation does transport much heat to, and affect the climate of, the North Atlantic (4, 70). The tendency of many models to underestimate abrupt paleoclimatic changes leaves open the possibility that other discussions have underestimated the potential effects of a thermohatine shutdown. The need for improved research to address these issues is clear.
60. M. Latif, E. Roeckner, U. Mikolajewicz, R. Voss, J. Clim. 13, 1809 (2000).
61. T. F. Stocker, A. Schmittner, Nature 388, 862 (1997).
62. J. Marotzke, in Decadal Climate Variability: Dynamics and Predictability, D. L. T. Anderson, J. Willebrand, Eds. (Springer-Vertag, Berlin, 1996).
63. R. Knutti, T. F. Stocker, J. Clim. 15, 179 (2001).
64. L. K. Barlow et al., Holocene 7, 489 (1997).
65. Abrupt Climate Change: Inevitable Surprises (National Research Council, National Academy Press, Washington, DC, 2002).
66. J. C. G. Walker, P. B. Hays, J. F. Kasting, J. Geophys. Res. 86, 9776 (1981).
67. D. C. Barber et al., Nature 400, 344 (1999).
68. K. L. Bice, J. Marotzke, Paleoceanography 17, 10.1029/2001PA000678 (2002).
69. B. J. Peterson et al., Science 298, 2171 (2002).
70. R. Seager et al., Q. J. R. Meteorol. Soc. (2002).
71. K. R. Laird, S. C. Fritz, K. A. Maasch, B. F. Cumming, Moon Lake Diatom Salinity-Drought Data (IGBP PAGES/World Data Center-A for Paleoclimatology Data Contribution Series #1998-015, National Oceanic and Atmospheric Administration-National Geophysical Data Center Paleoclimatology Program, Boulder, CO, 1998).
72. K. M. Cuffey, G. D. Clow, J. Geophys. Res. 102, 26383 (1997).
73. K. A. Hughen, J. T. Overpeck, L. C. Peterson, S. Trumbore, Nature 380, 51 (1996).
74. We thank NRC staff (A. Isern, J. Dandelski, C. Effring, M. Gopnik, M. Kelly, J. Bachim, A. Carlisle), the U.S. Global Change Research Program and the Yale National Bureau of Economic Research on International Environmental Economics for study funding, sponsors of our research (including NSF OPP 0087160 to R.B.A.), the community of researchers studying abrupt climate change who made this possible, and especially D. Bradford, W. Curry, and K. Keller for helpful comments.