Daniel P. Schrag

Daniel P. Schrag

  • Sturgis Hooper Professor of Geology and Professor of Environmental Science and Engineering
  • Director, Harvard University Center for the Environment
  • Area Chair for Environmental Science & Engineering


Professor Daniel Schrag studies climate and climate change over the broadest range of Earth history. He has examined changes in ocean circulation over the last several decades, with particular attention to El Niño and the tropical Pacific. He has worked on theories for Pleistocene ice-age cycles including a better determination of ocean temperatures during the Last Glacial Maximum, 20,000 years ago.

Dan also helped develop the Snowball Earth hypothesis, proposing that a series of global glaciations occurred between 750 and 580 million years ago that may have led to the evolution of multicellular animals. Currently he is working with economists and engineers on technological approaches to mitigating future climate change.

Contact Information

Nickname: Dan
Office:MCZ, Room 433F
Office Phone:(617) 495-7676
Office Fax(617) 496-0425

Primary Teaching Area

Positions & Employment

Harvard University

  • 2009-Present: Sturgis Hooper Professor of Geology at Harvard University
  • 2007-Present: Professor of Environmental Science and Engineering
  • 2000-Present: Professor, Department of Earth and Planetary Sciences
  • 1997-2000: Associate Professor, Department of Earth and Planetary Sciences
Princeton University
  • 1994-1997: Assistant Professor, Deptartment of Geosciences
Indiana University
  • 1993: Visiting Researcher
Newmont Mining
  • 1998: Geologist

Other Experience & Professional Membership

  • Member, President's Council of Advisors on Science and Technology
  • Member, American Geophysical Union
  • Member, Geochemical Society
  • Member, American Meteorological Society
  • Member, American Academy for the Advancement of Science
  • Member, Canadian Institute for Advanced Research
  •  Advisory Committee for Earth Institute of Columbia University, 2002-Present
  • Board of Reviewing Editors, Science, 2002-2005
  • Associate Editor, Geochem., Geophys., Geosyst., 1999-Present


  • James B. Macelwane Medal, American Geophysical Union, 2001
  • MacArthur Fellow, 2000)
  • Technology Review TR100 - 100 young innovators for the next century, 1999
  • Ocean Drilling Program Fellowship (Berkeley), 1992
  • Samuel Lewis Penfield Prize in Mineralogy (Yale), 1988
  • Katherine K. Walker Prize in Political Science (Yale), 1988
  • Frank M. Patterson Prize in Political Science (Yale), 1987
  • Westinghouse Science Talent Search Finalist, 1984