RESEARCH:

My research interests are biogeochemistry, geochemisty (isotope, environmental), exobiology, philosophy of science, and environmental studies. My current research program includes: the study of lichen weathering of rock, lichens as biomonitors, the long-term carbon cycle and coevolution of climate and life (the Earth's "geophysiology"), biogenesis and early biospheric evolution, the uses and misuses of thermodynamic concepts in environmental science and the material prerequisites for a sustainable and just world.

TEACHING:

Courses:

Fall
The Biosphere, Exobiology and the Origin of Life (graduate/undergraduate)

Spring
Global Environment, Biogeochemistry

Both semesters
Independent Investigations, Directed Readings, Topics in Ecology & Evolution

CURRENT FUNDING:

A Search for Diatom and Chrysophyte Symbionts in Lichens, Washington
Biologists' Field Club, $2,500

SELECTED PUBLICATIONS:

Schwartzman, P. and Schwartzman, D. 2007. Is the world overpopulated? Green Horizon Quarterly, Winter 10-13.

Schwartzman, D. W. and Lineweaver, C.H. 2006 A Hot Hadean for Biogenesis? I-4. Abstract. Origins of Life and Evolution of Biospheres 36, No.3, 205-206.

H. Piontkivska, D.W. Schwartzman and C.H. Lineweaver 2006. Hyperthermophilic biogenesis and early biospheric evolution Abstract, Geochimica et Cosmochimica Acta, 70, Issue 18, Supplement 1, August-September, 30.

Schwartzman, D.W. and A. Kleidon 2006. Are there multiple steady states in the long-term carbon cycle? Abstract, Geochimica et Cosmochimica Acta, Volume 70, Issue 18, Supplement 1, August-September, 15.

Schwartzman, P. and D. Schwartzman 2006. Book review of The Real Environmental Crisis..by Jack M. Hollander, Science & Society 70, No.3. 437-440.

Schwartzman, D. 2006. Our Future Solar Utopia: Another World is
Possible! Green Horizon Quarterly, March issue.

Schwartzman, D. 2006. Comment, Role of river-suspended material in the global carbon cycle Geology, online publication. Forum. doi: 10.1130/G22686C.1, e112.

Schwartzman, D. and Lineweaver, C.H. 2005. Temperature, biogenesis and biospheric self-organization, In: Non-Equilibrium Thermodynamics and the Production of Entropy: Life, Earth, and Beyond, (A. Kleidon and R.D. Lorenz, eds) Chapter 16, pp.207-221, Springer.

Schwartzman D. and C.H. Lineweaver. 2004. Precambrian surface temperatures and molecular phylogeny. In: R.P. Norris and F.H. Stootman (eds.) Bioastronomy 2002: Life Among the Stars IAU Symposium 213, Astronomical Society of the Pacific, San Francisco, pp. 355-358.

Schwartzman D. and C.H. Lineweaver. 2004. Precambrian surface temperatures and molecular phylogeny. In: R.P. Norris and F.H. Stootman (eds.) Bioastronomy 2002: Life Among the Stars IAU Symposium 213, Astronomical Society of the Pacific, San Francisco, pp. 355-358.

Schwartzman D.W. and T. Volk. 2004. Does Life Drive Disequilibrium in the Biosphere? In: Schneider, S.H., Miller, J.R., Crist, E., and P.J. Boston (eds.) Scientists Debate Gaia: 2000, MIT Press, pp. 129-135.

Schwartzman, D. and Lineweaver, C.H. 2004. The hyperthermophilic origin of life revisited. Biochem. Soc. Trans. 32: 168-171.

Lineweaver C.H., Schwartzman D. 2004. Cosmic Thermobiology, thermal constraints on the origin and evolution of life. In: Seckbach J (ed) Origins: Genesis, evolution and biodiversity of microbial life in the Universe. Kluwer, Dordrecht, pp. 233-248.

2002. Life, Temperature, and the Earth: The Self-Organizing Biosphere, Columbia University Press. Paperback edition with new preface updating 1999 hardcover edition.

Aghamiri, R. and D. W. Schwartzman. 2002. Weathering rates of bedrock by lichens: a mini watershed study. Chemical Geology 188, Issues 3-4, p. 249-259.

2001. Playing the tape again, a deterministic theory of biosphere/biotic evolution, p.53-60; Biotic enhancement of weathering: the geophysiology of climatic evolution, p. 81-88, In: Earth System Science- a new subject for study (Geophysiology) or a new philosophy? International School Earth and Planetary Sciences, Proceedings (S. Guerzoni, S. Harding, T. Lenton and F. Ricci Lucchi, eds.), Siena, Italy.

Schwartzman, D. and G. Middendorf. 2000. Biospheric cooling and the emergence of intelligence, In: A New Era in Bioastronomy, ASP Conference Series, Vol. 213, (G. Lemarchand and K. Meech, eds.), p.425-429.

1999. Life, Temperature, and the Earth: The Self-Organizing Biosphere, Columbia University Press.

1998. Life was thermophilic for the first two-thirds of earth history. Chapter 3, p.33-43, In: Thermophiles: the keys to Molecular Evolution and the Origin of Life? (J. Wiegel and M. Adams, eds.) Taylor and Francis.

Schwartzman and S. N. Shore. 1996. Biotically mediated surface cooling and habitability for complex life, in Circumstellar Habitable Zones. Proceedings of the First International Conference, ed. L. R. Doyle, pp. 421-443, Travis House Publ., Menlo Park, CA.

MacDermott, A.J., Barron, L.D., Brack, A., Buhse, T., Drake, A.F., Emery, R., Gottarelli, G., Greenberg, J.M., Haberle, R., Hegstrom, R.A., Hobbs, K., Kondepudi, D.K., McKay, C., Moorbath, S., Raulin, F., Sandford, M., Schwartzman, D.W., Thiemann, W.H.-P., Tranter, G.E., and J.C. Zarnecki. 1996. Homochirality as the signature of life: the SETH Cigar, Planet. Space Sci. 44: 1441-1446.

Schwartzman, D. 1996. Life was thermophilic for the first two thirds of Earth history, Thermophiles '96, Workshop Program & Abstracts, September 10-12, University of Georgia, Athens, W.6., p. 28.

Schwartzman and S. N. Shore. 1996. Biotically mediated surface cooling and habitability for complex life, in Circumstellar Habitable Zones. Proceedings of the First International Conference, ed. L. R. Doyle, pp. 421-443, Travis House Publ., Menlo Park, CA.

Cochran, M.F. and Schwartzman, D. 1995. Chemical weathering rates on lichen- colonized silicate rocks, Annual Meeting, Geological Society of America, Abstracts with Programs 27, No.6, A-185.

Schwartzman, D. 1995. Temperature and the evolution of the biosphere, in Progress in the Search for Extraterrestrial Life. 1993 Bioastronomy Symposium, Santa Cruz, California, ed. G. Seth Shostak, pp. 152-161, Astronomical Society of the Pacific, San Francisco.

Schwartzman, D., Shore, S., Volk, T., and M. McMenamin. 1994. Self-organization of the Earth's biosphere- geochemical or geophysiological?, Origins of Life 24, 435-450.

Schwartzman, McMenamin, M., and T. Volk. 1993. Did surface temperatures constrain microbial evolution?, BioScience 43, 390-393.

Schwartzman and T. Volk. 1992. Biotic enhancement of Earth habitability, in Encyclopedia of Earth System Science,Volume 1, edited by W. A. Nierenberg, pp. 387-394, Academic Press.

Schwartman and T. Volk. 1991. Biotic enhancement of weathering and surface temperatures on Earth since the origin of life, Palaeogeogr. Palaeoclimatol. Palaeoecol. (Global and Planetary Change Sect.) 90, 357-371.

Schwartzman, Evans, J., Okrend, H.,and S. Aung. 1991. Microbial weathering and gaia, in Scientists on Gaia , edited by S. H. Schneider and P. J. Boston, pp. 320-329, MIT Press.

Schwartzman and T. Volk. 1991. When soil cooled the world, New Scientist 131, No.1777, 33-36.

Schwartzman, D., Stieff, L., Kasim, M., Kombe, E., Aung, S., Atekwana, E., Johnson, J. Jr. and K. Schwartzman. 1991. An ion-exchange model of lead-210 and lead uptake in a foliose lichen; application to quantitative monitoring of airborne lead 1989

Schwartzman and T. Volk. 1991. Biotic Enhancement of Weathering and the Habitability of Earth, Nature 340, 457-460.