Site References

• Adler, M. A., 1994. Population aggregation and the Anasazi social landscape: A view from the Four Corners. 85-101 In: Wills, W. H. and Leonard, R., editors. The ancient southwestern community: Models and methods for the study of prehistoric social organization. University of New Mexico Press, Albuquerque.
• Aksu, A., R. N. Hiscott, et. al., 2002. Persistent Holocene Outflow from the Black Sea to the Eastern Mediterranean Contradicts Noah ’s Flood Hypothesis. GSA Today.12:5. (in PDF).
• Allen, B. D., R.Y. Anderson, 1993. Evidence from western North America for rapid shifts in climate during the last glacial maximum. Science 260: 1920-1923.
• Allen, C. D., Betancourt, J. L. and Swetnam, T. W., 1998. Landscape changes in the southwestern United States: Techniques, long-term data sets and trends. Pp. 71-84 In: Sisk, T. D., editor. Perspectives on the Land Use History of North America: A context for understanding our changing environment. Biological Science Report USGS/BRD/BSR-1998-0003. U.S.Geological Survey, Biological Resources Division, Reston, VA.
• Allen, J.R.M., et. al., 1999. Rapid environmental changes in southern Europe during the last glacial period. Nature 400, 740–3.
  
• Alley, R. B., D. A. Meese, C. A. Shuman, A. J. Gow, K. C. Taylor, P. M. Grootes, J. W. C. White, M. Ram, E. D. Waddington, P. A. Mayewski, and G. A. Zielinski, 1993. Abrupt Increase in Greenland Snow Accumulation at the End of the Younger Dryas Event. Nature, 362: 527-529.
• Alvarez, L.W., W. Alvarez, F. Asaro, and H. V. Michel, 1980. "Extraterrestrial Cause for the Cretaceous-Tertiary Extinction." Science 208: 1095-1108.
• Alverson, K., Moore, G.W., Holdsworth, Cole, J., 2001. Improving Climate Predictability and Understanding Decadal Variability using Proxy Climate Data. CLIVAR Exchanges No.19, March 2001.
• Ambrose, Stanley H.,1998. Late Pleistocene human population bottlenecks, volcanic winter, and differenciation of modern humans. Journal of Human Evolution 35:115-118.
• Ballard, R.D., D. F. Coleman and G. D. Rosenberg, 2000. Further evidence of abrupt Holocene drowning of the Black Sea shelf, Marine Geology 170(3-4):253-261
• Baldini, J.U.L., F. McDermott, I. J. Fairchild, 2002. Structure of the 8200-year cold event revealed by a speleothem trace element record. Science 296: 2203-2206.
• Barber, D.C., A. Dyke, et. al., 1999. Forcing of the cold event of 8,200 years ago by catastrophic drainage of Laurentide lakes 1999. Nature 400:344-348.
• Barron, E. J. and W. M. Washington, 1985. "Warm Cretaceous Climates: High Atmospheric CO₂ as a Plausible Explanation." In The Carbon Cycle and Atmospheric CO₂: Natural Variations, Archaean to Present, ed. E. T. Sundquist and W. S. Broecker Geophysical Monograph 32, 546-53. Washington D.C.: American Geophysical Union.
• Battisti, D.S.,1988: "The Dynamics and Thermodynamics of a Warming Event in a Coupled Tropical Atmosphere/Ocean Model." J. Atmos. Sci., 45, 2889-2919.
• Beard, C., 2002. "East of Eden at the Paleocene/Eocene Boundary." Science. 295: 2028-2029.
• Bhatt, U.S., M.A. Alexander, D.S. Battisti, D.D. Houghton and L.M. Keller, 1997. Atmosphere-Ocean Interaction in the North Atlantic Ocean: near-surface Climate Variability. J. Climate, 11, 1615-32.
• Bond, G., et al., 2001. Persistent Solar Influence on North Atlantic Climate During the Holocene. SciencExpress, Nov. 15.
• Bradley, R. S., 2000. “Past global changes and their significance for the future. ”Quaternary Science Reviews 19: 391-402.
• Broadhurst, C. L., et. al., 2001. Brain-specific lipids from marine, lacustrine or terrestrial food resources: potential impact on early African Homo sapiens. Comparative Biochemistry and Physiology Part B 131 (2002) 653-673.
• Bowring, S.A., Erwin, d.H., Jin, Y.G., Martin, M.W., Davidek, K., and Wang, W., 1998. U/Pb Zircon Geochronology and Tempo of the End-Permian Mass
  Extinction. Science. 280: 1035 - 1045.
• Broecker, W.S., 1987. The biggest chill, Natural History, 96: 74- 82.
• Cane, M. and S.E. Zebiak, 1987. Prediction of El Niño events using a physical model. InAtmospheric and Oceanic Variability, H. Cattle, Ed., Royal Meteorological Society Press, 153-182.
• Chang, P., D.S. Battisti, 1998: "The Physics of El Nino". Physics World , Vol. 8, 41-47.
• Cole, J. E., E. R. Cook, 1998. The changing relationship between ENSO variability and moisture balance in the continental United States. Geophys. Res. Lett. 25:4529-4532.
• Cook, E. R., D. M. Meko, D. W. Stahle, and M. K. Cleaveland, 1996. Tree-ring reconstructions of past drought across the coterminous United States: tests of a regression method and calibration/verification results. Pages 155-169 in J. S. Dean, D. M. Meko, and T. W. Swetnam, editors. Tree Rings, Environment, and Humanity. Radiocarbon, Tucson, AZ.
• Cook, E. R., D. M. Meko, D. W. Stahle, and M. K. Cleaveland, 1999. Drought reconstructions for the continental United States. Journal of Climate 12:1145-1162.
• Cordell, L. S., G. J. Gumerman.,1989. Cultural interaction in the prehistoric Southwest,1-18.
• Cordell, L. S., G. J. Gumerman, editors, 1989. Dynamics of southwest prehistory. Smithsonian Institution Press, Washington, D.C.
• Cordell, L. S., 1994. Ancient Pueblo peoples. Smithsonian Books, Washington, D.C.
• Cordell, L. ,1997. Archaeology of the Southwest. Second Edition. Academic Press, San Diego, CA, 522.
• Crawford, M.A. , Bloom, M., et. al., 1999. Evidence for the unique function of docosahexaenoic acid during the evolution fot eh modern hominid brain. Lipids 34, S39-S47.
• Crowley, T. J., 2000. Causes of climate change over the last 1000 years. Science 289: 270-277.
• Crowley, T.J., R. A. Berner, 2001. CO₂ and climate change. Science (Perspectives), 292: 780-781.
• deMenocal, P.B., 2001. Cultural responses to climate change during the late Holocene, Science, 292, 667-673 (PDF).
• deMenocal, P.B., 1999. The answer was blowin' in the wind - Deep-sea drilling and the link between climate change and human evolution (Chap. 10). In Lamont-Doherty Earth Observatory: Twelve Perspectives on the First Fifty Years (1949-1999), L. Lippsett, (ed.), Columbia Univ. Press (New York),121-130.
  
• Deser, C., and M. Blackmon, 1993. Surface climate variations over the North atlantic ocean during winter: 1900-1989. Journal of Climate, 6:1743-1753.
• Dettinger, M.D., D.S. Battisti, G.J. McCabe Jr., C.M. Bitz, and R.D. Garreaud, 2001. Interhemispheric effects of interannual and decadal ENSO-like climate variations on the Americas. "Interhemispheric climate linkages in the Americas and their Societal Effects." Ed., V. Markgraf, Academic Press. In PDF.
• Diaz, H.F., 2001. Drought and the demise of the Anasazi. The Albuquerque Tribune, February 16, 2001.
• Diaz, H. F., C. A. Anderson, 1995. Precipitation trends and water consumption related to population in the southwestern United States: A reassessment. Water Resources Research 31.
• Drucker, P. F., 1966. The First Technological Revolution and Its Lessons. Technology Management and Society: Essays. New York, NY: Harper & Row, Publishers, Inc.
• Eddy, J.A., 1983. The Maunder minimum: a reappraisal, Solar Phys., 89, 195-207.
• Esper, J. , E. R. Cook, F. H. Schweingruber, 2002. Low-Frequency Signals in Long Tree-Ring Chronologies for Reconstructing Past Temperature Variability. Science 295: 2250-2253.
• Etheridge, D.M., L. P. Steele, R. J. Francey, R. L. Langenfelds, 1998. Atmospheric methane between 1000 A.D. and present: evidence of anthropogenic emissions and climatic variability. Journal of Geophysical Research, 103(D13):15,979 - 15,993.
• Folland, C.K., Karl, T.R., Christy, J.R., Clarke, R. A., Gruza, G.V., Jouzel, J., Mann, M.E., Oerlemans, J., Salinger, M.J., Wang, S.-W., Observed Climate Variability and Change, in Climate Change, 2001. The Scientific Basis, Houghton, J.T., et al. (eds.), Cambridge Univ. Press, Cambridge, 99-181.
  
• Forman, S.L., R. Oglesby, R. S. Webb, 2001. Temporal and spatial patterns of Holocene dune activity on the Great Plains of North America: megadroughts and climate links. Global and Planetary Change 29, 1-29. Download in PDF format.
• Forman, S. L., K. Munyikwa, 1999. An overview of Holocene dune activity on the Great Plains. EOS Transactions. American Geophysical Union 80(46):F55.
• Galileo, G. 1613, Letters on Sunspots, trans. S. Drake 1957, in Ideas and Opinions of Galileo, Doubleday.
• Gamkrelidze, T. V., V. V. Ivanov, 1990. "The Early History of the Indo-European Languages". Scientific American, March, 110.
• Gershunov, A., T. Barnett and D. Cayan, 1999. North Pacific interdecadal oscillation seen as factor in ENSO-related north American climate anomalies. EOS, 80, 25-30.
• Gordon, A.L., 1986. Interocean exchange of thermocline water, J. Geophys. Res. 91: 5037-5046.
• Gregory, J. M., J. F. B. Mitchell, A. J. Brady, 1997. Summer drought in northern midlatitudes in a time-dependent CO₂ climate experiment. Journal of Climate 10:662-686.
• Grimm, E. C., J. S. Clark, 1999. Fossil pollen and charcoal evidence for drought intensity and variability in the northern Great Plains. EOS, AGU Volume 80:46, F54.
• Grissino-Mayer, H., 1996. A 2129-year reconstruction of precipitation for northwestern New Mexico, U.S.A. Pages 191-204 in J. S. Dean, D. M. Meko, & T. W. Swetnam, editors. Tree Rings, Environment and Humanity. Radiocarbon, Tucson, AZ.
• Grayson, D. K., 1993. The Desert's Past: A Natural Prehistory of the Great Basin. Washington D.C.: Smithsonian Institution Press.
• Grissino-Mayer, H., 1996. A 2129-year reconstruction of precipitation for
  northwestern New Mexico, U.S.A. Pages 191-204 in J. S. Dean, D. M.
  Meko, and T. W. Swetnam, editors. Tree Rings, Environment and Humanity. Radiocarbon, Tucson, AZ.
• Groisman, P. Ya, R.S. Bradley and B. Sun, 1999. The relationship of cloud cover to near-surface temprature and humidity: comparison of GCM simulations with empirical data. Journal of Climate 13, 1858-1878.
• Gross-Schulman,Sandra, David E. Dassey, and Laurene Mascola, 1998. "Influenza", The Western Journal of Medicine, 169: 377.
• Halpert, M. S. and C. F. Ropelewski, 1992. Surface temperature patterns associated with the Southern Oscillation. J. Climate, 5: 577-593.
• Hare, S. R., 1996. Low Frequency Climate Variability and Salmon Production, PhD dissertation, School of Fisheries, University of Washington, Seattle, WA.
  
• Hayes, M. J., M. D. Svoboda, D. A. Wilhite, and O. V. Vanyarkho, 1999. Monitoring the 1996 drought using the Standardized Precipitation Index. Bulletin of American Meteorological Society 80(3):429-438.
• Hendy, I.L., J. P. Kennett, R. J. Behl, 1996. Rapid Interstadial Climate Changes Recorded in the Surface Waters of the Santa Barbara Basin, ODP Site893A, 14th Biennial Meeting of the American Quaternary Association, Program & Abstracts, 85.
• Hendy, E. J., et. al., 2002. Abrupt Decrease in Tropical Pacific Sea Surface Salinity at End of Little Ice Age. Science, 295(5559): 1511-1514.
• Henshilwood, C.S., F. d'Errico, et. al., 2002. Emergence of Modern Human Behaviour: Middle Stone Age engravings from South Africa. Science 295:1278-1280.
• Henshilwood, C.S., d'Errico, F.E., et. al., 2001. An early bone tool industry from the Middle Stone Age at Blombos Cave, South Africa: implications for the origins of modern human behaviour, symbolism and language. Journal of Human Evolution 41:631-678.
  
• Hodell, D.A., J. H. Curtis, and M. Brenner, 1995. Possible role of climate in the collapse of the Classic Maya Civilization. Nature 375:391-394.
• Hoffman, P. F. A. J. Kaufman, G. P. Halverson and D. P. Schrag, 1998. A Neoproterozoic Snowball Earth. Science, 281:1342-1346.
• Hurrell, J.W., H. van Loon. 1997. Decadal variations in cliamte associated with the North Atlantic Oscillation. Climatic Change, 36:301-326.
• Hughes, M. K. and L. J. Graumlich, 1996. Climatic variations and forcing mechanisms of the last 2000 years. Volume 141. Multi-millenial dendroclimatic studies from the western United States. NATO ASI Series, 109-124.
• IPCC, 2001. Intergovernmental Panel on Climate Change's Synthesis Report. Climate Change 2001 (PDF), 5. or web versions of 2001 IPCC reports.
  
• Johnson, G., 1996. Social Strife May Have Exiled Ancient Indians, New York Times Science, August 20, 1996, Section C, 1.
• Junger, S., 1997. The Perfect Storm: A True Story of Men Against the Sea. Harper Collins.
• Keen, K. L., and L. C. K. Shane, 1990. A continuous record of Holocene eolian activity and vegetation change at Lake Ann, east-central Minnesota. Geological Society of America Bulletin, 102(12):1646-1657.
• Kennedy, M. J., B. Runnegar, A.R. Prave, K. H. Hoffmann, and M. A. Arthur. 1998. Two or Four Neoproterozoic Glaciations? Geology 26 (12): 1059-1063.
• Kiladis, G. N., and H. F. Diaz, 1989. Global climatic anomalies associated with extremes in the Southern Oscillation. J. Climate, 2, 1069-1090.
• Knutson, T.R., and S. Manabe, 1994. The impact of increased CO on ENSO-like phenomena in a coupled ocean-atmosphere system, Geophys. Res. Lett., 21, 2295-2298.
• Kolbert, E., 2002. Ice Memory. The New Yorker Magazine, February 5, 2002.
• Laird, K. R., S. C. Fritz, K. A. Maasch, and B. F. Cumming, 1996. Greater drought intensity and frequency before A.D. 1200 in the Northern Great Plains, U.S.A. Nature 384:552-554.
• Laird, K. R., S. C. Fritz, and B. F. Cumming, 1998. A diatom-based reconstruction of drought intensity, duration, and frequency from Moon Lake, North Dakota: a sub-decadal record of the last 2300 years. J. Paleolimnol. 19:161-179.
• Landsea, C.W., W.M. Gray, P.W. Mielke, Jr., K.J. Berry, 1995. June to September rainfall in the African Sahel: A seasonal forecast for 1995, CSU Dept. of Atmospheric Science paper released on 6 June, 1995: 3.
• Leonard, J. et al. 2002. Ancient DNA evidence for Old World origin of New World dogs. Science 298: 1613-1616.
• Lovelock, J., 1995. The Ages of Gaia: A Biography of Our Living Earth. New York: W.W. Norton.
• Manley, W.F., 2002. Postglacial Flooding of the Bering Land Bridge: A Geospatial Animation: INSTAAR, University of Colorado, v1.
  
• Mann, M. E., Rutherford, S., et. al., 2003. Optimal Surface Temperature Reconstructions Using Terrestrial Borehole Data. JGR Atmospheres (in press).
• Mann, M. E., 2002. Climate Reconstruction: The Value of Multiple Proxies. Science. 297: 1481-1482. PDF.
• Mann, M.E., Bradley, R. S. and Hughes, M. K., 1999. Northern Hemisphere Temperatures During the Past Millennium: Inferences, Uncertainties, and Limitations, Geophysical Research Letters. 26, 6: 759.
• Mantua, N.J. and D.S. Battisti, 1994. Evidence for the delayed oscillator mechanism for ENSO: The "observed'' oceanic Kelvin mode in the far western Pacific, J. Phys. Oceanogr., 24, 691-699.
• Mantua, N.J. and S.R. Hare, Y. Zhang, J.M. Wallace, and R.C. Francis, 1997. A Pacific interdecadal climate oscillation with impacts on salmon production. Bulletin of the American Meteorological Society, 78: 1069-1079.
• Mantua, N.J., 1999. The Pacific Decadal Oscillation. A brief overview for non-specialists, to appear in the Encyclopedia of Environmental Change.
• Margulis L., 1992. Biodiversity: Molecular biological domains, symbiosis and kingdom origins. Biosystems 27:39-51
• Martin, D. L., 1994. Patterns of health and disease stress profiles for the prehistoric Southwest. In Themes in Southwest Prehistory, edited by George J. Gumerman: 87-108. School of American Research Press, Santa Fe, N.M.
• Marotzke, J., 2000. Abrupt climate change and the thermohaline circulation: Mechanisms and predictability. Proceedings of the National Academy of Sciences (U.S.A.), 97, 1347-1350.
• Matson, R.G., 1991. The origins of southwestern agriculture. The University of Arizona Press: Tucson.
  
• McGregor, K. M.,1985. Drought during the 1930s and 1950s in the central United States. Physical Geography 6(3):288-301.
• Mileti, D., 1999. Disasters by Design: A Reassessment of Natural Hazards in the United States. National Academy Press.
• Miller, G. H., J. W. Magee, B. J. Johnson, et. al., 1999. Pleistocene Extinction of Genyornis newtoni: Human Impact on Australian Megafauna. Science 283: 205-208.
• Mitchell, J. M., 1976. An Overview of Climatic Variability and Its Causal Mechanisms. Quaternary Research 6, 481-493.
• Morgan, E., 1999. The Aquatic Ape Hypothesis. Bookpoint, New York.
• Morris, D., 1967. The Naked Ape : a zoologist's study of the human animal. McGraw-Hill.
• Moy, C. M., et. al., 2002. Variability of El Niño/Southern Oscillation activity at millennial timescales during the Holocene epoch. Nature, 420, 162-165. See summary & data.
• Nesje, A. and S. O. Dahl, 2000. Glaciers and environmental change. Arnold, London, 203.
• Niewohner, W. A., et al., 2003. Manual dexterity in Neanderthals. Nature 422, 395.
• Noren, A. J., P. R. Bierman, E. J. Steig, A. Lini, and J. Southon, 2002. Millennial-scale Storminess Variability in the Northeastern United States during the Holocene Epoch. Nature, 419: 6909: 821-824.
• Otto-Bliesner, B. L., E. C. Brady and C. Shields, 2001: Late Cretaceous Ocean: Coupled Simulations with the NCAR CSM, J. Geophys. Res.
• Qin, B., S. P. Harrison, and J. E. Kutzbach, 1998. Evaluation of modelled regional water balance using lake status data: a comparison of 6ka simulations with the NCAR CCM. Pages 535-548 in T. Webb, III, editor. Late Quaternary Climates: Data Syntheses and Model Experiments. Quaternary Science Reviews vol. 17.
• Palais, J. M., M. S. Germani and G. A. Zielinski, 1992. Inter-hemispheric transport of volcanic ash from a 1259 A.D. volcanic eruption to the Greenland and Antarctic ice sheets Geophysical Research Letters, 19, 8: 801-804.
• Penland, C., T. Magorian, 1993. Prediction of Niño 3 Sea Surface Temperatures using linear inverse modeling, J. Climate, 6, 107-176.
• Petit J.R., Basile I., Raynaud D., Lorius C., et. al., 1997. Four climate cycles in Vostok ice core, "Nature", 387: 359-360.
• Petit, J. R. et al., 1999. Climate and atmospheric history of the past 420,000 years from the Vostok ice core, Antarctica. Nature. 399: 429-436.
• Pielke Jr., R.A., 1997."Reframing the U.S. Hurricane Problem." Society and Natural Resources 10 (5): 485-499.
• Pielke Jr., R.A., and C.W. Landsea (1999): La Niña, El Niño, and Atlantic hurricane damages in the United States. Bulletin of the American Meteorological Society, 80(10):2027-2033.
• Pielke Jr., R.A., and C.W. Landsea, 2002: La Niña, El Niño, and US Atlantic hurricane damages. In: M.H. Glantz (ed.), La Niña and Its Impacts: Facts and Speculation. Tokyo, Japan: United Nations University Press, 119-123.
• Pyne, S.J., 1991. Burning bush: A Fire History of Australia, Henry Holt & Company, New York. 28-37.
• Rampino, M.R. , S. H. Ambrose, 2000. Volcanic winter in the Garden of Eden: The Toba super-eruption and the Late Pleistocene human population crash. In F.W. McCoy and G. Heiken, (eds) Volcanic Hazards and Disasters in Human Antiquity. Geological Society of America Special Paper 345:71-82.
• Rampino, M.R., and S. Self, 1992. Volcanic winter and accelerated glaciation following the Toba super-eruption. Nature 359: 50-52.
• Ray, A.J. and R. S. Webb, 2001. Demand-side perspective on climate services for reservoir management. Proceedings of the 25th Climate Diagnostics & Prediction Workshop, October 2000, 219-222. (CDC)
• Ray, A.J, R.S. Webb, and J.L. Wiener, 2000, Demand-side perspectives on climate information: Decision calendars as tool for organizing user studies. (CDC and the NOAA-OGP Human Dimensions Program)
• Riebsame, W. E., S. A. Changnon, and T. R. Karl, 1991. Drought and natural sesources management in the United States: impacts and implications of the 1987-89 drought. Westview Press. 11-92.
• Ropelewski, C.F. and M. S. Halpert, 1989. Precipitation patterns associated with the high phase of the Southern Oscillation. J. Climate, 1, 172–182.
• Rose, W.I., and Chesner, C.A., 1987. Dispersal of ash in the great Toga eruption, 75 ka: Geology, v. 15, p. 913-917. Simkin, T., and Siebert, L., 1994, Volcanoes of the World: Geoscience Press, Tucson, Arizona, 349.
• Ruddiman, W. F., 2001. Earth's Climate: past and future. W.H. Freeman & Sons, New York.
• Ryan, W.B.F., Pitman III, W.C., et. al., 1997. An abrupt drowning of the Black Sea Shelf. Mar. Geol. 138, 119-126.
  
• Salzer, Matthew W., 2000. Temperature variability and the northern Anasazi: possible implications for regional abandonment. Kiva 65:295­318.
• Sarnthein, M., J.P. Kennett, et al., 2000. EOS,81 (51), 629-630. See PDF graphic.
• Savolainen, P et al., 2002. Genetic evidence for an East Asian origin of domestic dogs. Science 298: 1610-1613.
• Schulz, M., A. Paul, 2002. Holocene climate variability on centennial-to-millennial time scales: 1. Climate records from the North-Atlantic realm. (PDF). In: Wefer, G., Berger, W. H., Behre, K.-E. and Jansen, E. (eds.), Climate development and history of the North Atlantic Realm. Springer Verlag, Berlin, 41-54.
• Schulz, M., 2002. The tempo of climate change during Dansgaard-Oeschger interstadials and its potential to affect the manifestation of the 1470-year climate cycle. Geophys. Res. Lett., 29 (1), 10.1029/2001GL013277
• Shindell, D.T., Schmidt, G.A., Mann, M.E., Rind, D., Waple, A., 2001. Solar forcing of regional climate change during the Maunder Minimum, Science 294: 2149-2152.
• Smith, C.A. and P. Sardeshmukh, 2000. The Effect of ENSO on the Intraseasonal Variance of Surface Temperature in Winter., International J. of Climatology, 20 1543-1557.
• Stahle, D. W., et al., 2000. Tree-ring data document 16th century megadrought over North America. EOS Transactions. Am. Geophy. Union 81(12):121,125.
• Stahle, D. W., M. K. Cleaveland, D. B. Blanton, M. D. Therrell, and D. A. Gay, 1998. The lost colony and Jamestown droughts. Science 280:564-567.
• Steig E. J, E. J. Brook, J. W. C. White, et. al., 1998. Synchronous climate changes in Antarctica and the North Atlantic. Science 282: 92-95.
• Stine, S., 1994. Extreme and persistent drought in California and Patagonia during medieval time. Nature 369:546-549.
• Stothers, R.B., 1999. Volcanic dry fogs, climate cooling, and plague pandemics in Europe and the Middle East. Climatic Change 42, 713-723.
• Suarez M.J., and P.S. Schopf,1988. A delayed action oscillator for ENSO, J. Atmos. Sci., 45: 3283-328.
• Svensmark, H., 2000. Cosmic Rays and Earth's Climate. Space Science Reviews 93: 155-166.
• Swetnam, T. W. and J. L. Betancourt, 1992. Temporal patterns of El Niño/Southern Oscillation - wildfire teleconnections in the southwestern United States. 259-270. In: Diaz, H. F. and Markgraf, V., editors. Historical and Paleoclimatic Aspects of the Southern Oscillation. Cambridge University Press, New York, NY.
• Tannehill, I.R., 1947. Drought and Its Causes and Effects. Princeton University Press, 597.
• Thompson, L.G., E. Mosley-Thompson, W. Dansgaard, P. M. Gootes, 1986. The Little Ice Age as recorded in the stratigraphy of the tropical Quelccaya Ice Cap. Science 234:361-364.
  
• Tziperman, E., L. Stone, M. Cane, and H. Jarosh, 1994. El Niño chaos: overlapping of resonances between the seasonal cycle and the Pacific ocean-atmosphere oscillator, Science, 264: 72-74.
• U.S. EPA, 2002. Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990 -2000, U.S. Environmental Protection Agency, Office of Atmospheric Programs, EPA 430-R-02-003, April 2002.
• Van West, C. R. 1991. Reconstructing prehistoric climatic variability and agricultural production in southwestern Colorado, A.D.901-1300: A GIS approach. 25-34. In: Hutchinson, A., Smith, J. E. and Usher, J., editors. Proceedings of the Anasazi Symposium 1991. Mesa Verde Museum Association, Inc., Mesa Verde, CO.
  
• Vimont, D. J., J.M. Wallace and D. S. Battisti, 2002. Seasonal footprinting in the Pacific: Implications for ENSO. J. Climate.
• Vivian, R. G., 1990. The Chacoan Prehistory of the San Juan Basin, Academic Press.
• Vivian, R. G. , Hilpert B, 2002. The Chaco Handbook, An Encyclopedic Guide, University of Utah Press.
• Von Grafenstein et al, 1998. Climate Dynamics 14: 73-81.
• Webb T. III, K. A. Anderson, P. J. Bartlein, R. S. Webb, 1998. Late Quaternary climate change in eastern North America: a comparison of pollen-derived estimates with climate model results. Quaternary Science Reviews 17:587-606.
• Weiss, H., M.A. Courty,1993. The Genesis and Collapse of the Akkadian Empire. In Akkad: The First World Empire, edited by M. Liverani, 131-155. Sargon, Padua.
• Weiss, H., 2000. Beyond the Younger Dryas- Collapse as Adaptation to Abrupt Climate Change. In Confronting Natural Disaster: Engaging the Past to Understand the Future, G. Bawden and R. Reycraft, editors, 75-98. University of New Mexico Press, Albuquerque.
• White, T. D., 1992. Prehistoric Cannibalism at Mancos 5MTUMR-2346. Princeton University Press, Princeton, NJ, 492.
• Wilshusen, R. H., M. J. Churchill, and J. M. Potter, 1997. Prehistoric Reservoirs and Water Basins in the Mesa Verde Region: Intensification of Water Collection Strategies During the Great Pueblo Period. American Antiquity.62:664–681.
• Woodhouse, C.A., 2001. A tree-ring reconstruction of streamflow for the Colorado Front Range. Journal of the American Water Resources Association 37, 561-570.
• Woodhouse, C.A. and P.M. Brown, 2001. Tree-ring evidence for Great Plains drought. Tree-Ring Research, 57, 89-103.
• Woodhouse, C.A., 2000. Extending hydrologic records with tree rings. Water Resources Impact 2:25-27.
• Woodhouse, C.A. ,1999. Artificial neural networks and dendroclimatic reconstructions: an example from the Front Range, Colorado, USA. The Holocene 9: 521-529.
• Zielinski, G.A., et. al., 1996. Potential Atmospheric impact of the Toba mega-eruption ~71,000 years ago. Geophysical Research Letters, Vol. 23, p. 837-840, 1996