Mohammad Aslam Khan Khalil

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Mohammad Aslam Khan Khalil
Born (1950-01-07) January 7, 1950 (age 66)
Jhansi, U.P., India
Residence Portland, Oregon, USA
Nationality Pakistani-Indian-American
Fields Theoretical Physics, Global Change Science
Institutions Portland State University
Oregon Graduate Institute
University of Texas at Austin
University of Minnesota
Doctoral advisor E.C.G. Sudarshan
Other academic advisors Reinhold A. Rasmussen
Known for Atmospheric Chemistry
quantum field theory
Environmental Science
Notable awards Outstanding Scientist Award (2004)
ISI Most Cited Authors (2001)

Mohammad Aslam Khan Khalil, M.A.K. Khalil or Aslam Khalil (born January 7, 1950) is a highly cited[1] Pakistani American theoretical physicist known for his leading research in atmospheric physics. Early in his career, he worked on quantum field theory of elementary particles. During the last three decades, he has worked on Global Change Science, including the physics, chemistry and biology of greenhouse gases and ozone depleting compounds. He is a professor of physics at Portland State University.[2]


Born in Jhansi, Uttar Pradesh, India, Khalil's family migrated to Pakistan in 1952 where they settled in Abbottabad, Pakistan. He attended Burn Hall School in Abbottabad in the mid-1950s and Saint Placid's High School in Chittagong, East Pakistan (now Bangladesh) in the early 1960s. Khalil's family moved to the United States in 1963 where he graduated from Alexander Ramsey Senior High School in Roseville, Minnesota in 1966.

Mohammad Aslam Khan Khalil received his Bachelor of Physics degree from the University of Minnesota Institute of Technology, Minneapolis in 1970. In the same year he received a B.A. in Mathematics and a B.A. in Psychology from the University of Minnesota College of Liberal Arts. In 1972, he received his M.S. in Physics from Virginia Polytechnic Institute. Dr. Khalil was awarded a Ph.D in Theoretical Physics under the supervision of the Indian-American theoretical physicist Dr. E.C.G. Sudarshan from the Center for Particle Theory at the University of Texas, Austin in 1976. In 1979, Dr. Khalil received an M.S and a Ph.D in Environmental Science and Engineering from Oregon Graduate Center under the supervision of the American Botanist and Atmospheric Chemist, Dr. Reinhold A. Rasmussen.

Teaching and research at American universities[edit]

In 1980 Dr. Khalil joined the Oregon Graduate Center (OGC), now the Oregon Health and Sciences University (OHSU) as an Assistant Professor of Environmental Science. He was promoted to Associate Professor in 1982 and to Full Professor in 1984. In 1990, he founded the Global Change Research Center at OGC and served its first director until 1995, when he left the Oregon Graduate Institute and joined Portland State University (PSU) as a Professor of Physics, a post he currently holds. He was the Director of PSU's Environmental Science and Resources Interdisciplinary Ph.D program that spanned eight departments until it's dissolution into departmental PhD programs.

Legacy and fame[edit]

Mohammad Aslam Khan Khalil is a well-known academic and a highly cited atmospheric physicist and environmental scientist. Dr. Khalil has published more than 200 scientific articles and papers in the United States. He and his colleague R. A. Rasmussen discovered the increase of methane in the Earth's atmosphere in 1981 which has led to a recognition of the important effects of non-CO2 greenhouse gases on global warming. His work has contributed to the Kyoto Protocol to limit the emissions of greenhouse gases and the earlier Montreal Protocol to control the emissions of ozone depleting compounds. Dr. Khalil is listed in Who's Who in America and Who's Who in the World.


  • Outstanding Scientist Award, Oregon Academy of Sciences (2004)
  • ISI's Most Cited Author (2001)
  • Citation From UNEP (2008): Member of the team that won the 2007 Nobel Peace Prize for the IPCC

Avocations and other activities of note[edit]

Distance Runner - Marathon and Ultra-Marathon
Endurance Bicyclist - Specializing in 100-200 mile rides - STP 1-day rider
Founder and Owner of Andarz Co. A company that conducts advanced research about the human impacts on climate.


  • Handbook of Environmental Chemistry Member, Editorial Board
  • Environmental Science and Pollution Research International Member, Editorial Board
  • Member of American Geophysical Union
  • Member of American Physical Society
  • Member of American Chemical Society
  • Member of Nature Conservancy
  • An elected fellow at Sigma Xi Physics society
  • Chemosphere: Global Change Science, Editor-in-Chief (1990–2005)
  • Encyclopedia of Life Support Systems Member, Editorial Advisory Board (1990–1995)
  • Atmospheric Environment Member, Editorial Board (1996–2008)
  • Director of the NATO Advanced Research Workshop on "Atmospheric Methane: Its Role in Global Change" Mt. Hood, Oregon (1991)

Selected publications[edit]

Scientific papers and articles[edit]

  • Non-CO2 greenhouse gases in the atmosphere.

M.A.K. Khalil. Annual Review of Energy/Environment, Annual Reviews, 1999, Vol. 24: 245-261, 1999.

  • Earth’s atmosphere.

M.A.K. Khalil. Encyclopedia of Geochemistry, Encyclopedia of Earth Sciences Series, C.P. Marshall and R.W. Fairbridge, Editors, Kluwer Academic Publishers, p. 143-145, 1999.

  • Measurements of methane emissions from rice fields in China.

M.A.K. Khalil, R.A. Rasmussen, M.J. Shearer, R.W. Dalluge, L.X. Ren, and C.-L. Duan, J. Geophys. Res., 103(D19): 25,181-25,210, 1998.

  • Emissions of methane, nitrous oxide, and other trace gases from rice fields in China.

M.A.K. Khalil, R.A. Rasmussen, M.J. Shearer, Z.-L. Chen, H. Yao, and Y. Jun, J. Geophys. Res., 103(D19): 25,241-25,250, 1998.

  • Atmospheric methane over the last century.

M.A.K. Khalil, M.J. Shearer, and R.A.Rasmussen, World Resource Review, 8(4): 481-492, 1996.

  • The distribution of solar radiation in the Earth’s atmosphere: The effects of ozone, aerosols, and clouds.

Y. Lu and M.A.K. Khalil. Chemosphere, 32(4): 739-758, 1996.

  • Greenhouse gases in the earth’s atmosphere.

M.A.K. Khalil. Encyclopedia of Environmental Biology, Volume 2, W.A. Nirenberg, Editor, Academic Press, Florida, p. 251-265, 1995.

  • The global sources of nitrous oxide.

M.A.K. Khalil and R.A. Rasmussen; J. Geophys. Res., 97(D13):14651-14660, 1992.

  • Theory and development of a one-dimensional time-dependent radiative convective climate model.

R.M. MacKay and M.A.K. Khalil, Chemosphere, 22(3-4):383-417, 1991.

  • Linear least squares method for time series analysis with an application to a methane time series.

M. A. K. Khalil and F. P. Moraes. Journal of the Air and Waste Management Association, 45, Jan 1995.


  • Atmospheric Methane by Mohammad Aslam Khan Khalil (1993, 2000)

See also[edit]