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25位科学家就“气候门”事件发表公开信

半个多月前，英国东安格利亚大学气候研究中心(CRU)的计算机系统遭到黑客入侵，CRU成员的电子邮件被窃取，随后被公布在互联网上。很多人根据邮件透露的内容指责英国科学家操纵气候变暖数据，并据此认为全球变暖在很大程度上是“人造”的。这一事件被媒体称作“气候门”。

12月4日，25位美国科学家发表公开信，称这些邮件的内容无法动摇全球变暖的现有结论，决策者和公众应该明了控制全球变暖的紧迫性。这25位科学家来自哈佛大学、斯坦福大学、普林斯顿大学、华盛顿大学、芝加哥大学、麻省理工学院、加州大学伯克利分校等多所名校。

信中说：“人类活动是全球变暖的主因，证据是压倒性的。被盗的电子邮件内容不管怎样对于我们的总体理解没有影响，即人类活动正将全球变暖推进到危险水平。”（科学网梅进/编译）

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25位科学家公开信（英文）

DECEMBER 4, 2009
An Open Letter to Congress from U.S. Scientists on
Climate Change and Recently Stolen Emails
1 Letter to Congress on Climate Change from 18 Scientific Societies, October 21, 2009
www.aaas.org/go/climate_letter
As U.S. scientists with substantial expertise on climate change and its impacts on natural
ecosystems, our built environment and human well-being, we want to assure policy makers and
the public of the integrity of the underlying scientific research and the need for urgent action to
reduce heat-trapping emissions. In the last few weeks, opponents of taking action on climate
change have misrepresented both the content and the significance of stolen emails to obscure
public understanding of climate science and the scientific process.
We would like to set the record straight.
The body of evidence that human activity is the dominant cause of global warming is
overwhelming. The content of the stolen emails has no impact whatsoever on our overall
understanding that human activity is driving dangerous levels of global warming. The scientific
process depends on open access to methodology, data, and a rigorous peer-review process.
The robust exchange of ideas in the peer-reviewed literature regarding climate science is
evidence of the high degree of integrity in this process.
As the recent letter1 to Congress from 18 leading U.S. scientific organizations, including the
American Association for the Advancement of Science, the American Geophysical Union, and the
American Meteorological Society, states:
“Observations throughout the world make it clear that climate change is
occurring, and rigorous scientific research demonstrates that the greenhouse
gases emitted by human activities are the primary driver. These conclusions are
based on multiple independent lines of evidence, and contrary assertions are
inconsistent with an objective assessment of the vast body of peer-reviewed
science. … If we are to avoid the most severe impacts of climate change,
emissions of greenhouse gases must be dramatically reduced.”
These “multiple independent lines of evidence” are drawn from numerous public and private
research centers all across the United States and beyond, including several independent
analyses of surface temperature data. Even without including analyses from the UK research
center from which the emails were stolen, the body of evidence underlying our understanding
of human-caused global warming remains robust.
We urge you to take account of this as you make decisions on climate policy.

The Endorsers of
An Open Letter to Congress from U.S. Scientists on Climate Change and
Recently Stolen Emails
Updated December 7, 2009
† = Member, National Academy of Sciences Institutional affiliation for identification purposes only
‡ = Member, National Academy of Engineering
Signed:
David Archer, Ph.D.
Professor
Department of the Geophysical Sciences
University of Chicago
Chicago, IL
William C. Clark, Ph.D.†
Harvey Brooks Professor of International
Science, Public Policy, and Human
Development
John F. Kennedy School of Government
Harvard University
Cambridge, MA
Peter C. Frumhoff, Ph.D.
Director of Science and Policy
Chief Scientist, Climate Campaign
Union of Concerned Scientists
Cambridge, MA
Inez Fung, Ph.D. †
Professor of Atmospheric Science
Co-Director, Berkeley Institute of the
Environment
University of California, Berkeley
Berkeley, CA
Donald Kennedy, Ph.D.†
Editor-in-Chief, Science, 2000-2008
President Emeritus
Bing Professor of Environmental Science
and Policy
Biological Sciences
Stanford University
Stanford, CA
Neal Lane, Ph.D.
Professor
Rice University
Former Director, National Science
Foundation
Former Director, White House Office of
Science and Technology Policy
Houston, TX
Michael MacCracken, Ph.D.
Chief Scientist for Climate Change
Programs
The Climate Institute
Washington, DC
Pamela Matson, Ph.D.†
Professor
School of Earth Sciences
Stanford University
Stanford, CA
James J. McCarthy, Ph.D.
Alexander Agassiz Professor of Biological
Oceanography
Harvard University
Cambridge, MA
Jerry Melillo, Ph.D.
Senior Scientist and Director Emeritus
The Ecosystems Center
Marine Biological Laboratory
Woods Hole, MA

The Endorsers of
An Open Letter to Congress from U.S. Scientists on Climate Change and
Recently Stolen Emails
Updated December 7, 2009
† = Member, National Academy of Sciences Institutional affiliation for identification purposes only
‡ = Member, National Academy of Engineering
Edward L. Miles, Ph.D.†
Bloedel Professor of Marine Studies and
Public Affairs
School of Marine Affairs
Co-Director, Center for Science in the
Earth System, JISAO
University of Washington
Seattle, WA
Mario J. Molina, Ph.D.†
Scripps Institution of Oceanography
University of California, San Diego
Nobel Laureate, Chemistry
San Diego, CA
Harold Mooney, Ph.D. †
Paul S. Achilles Professor of
Environmental Biology
Department of Biology
Stanford University
Stanford, CA
Berrien Moore III, Ph.D.
Director Emeritus
Institute for the Study of Earth, Oceans,
and Space
University of New Hampshire
Executive Director
Climate Central
Princeton, NJ
Ellen Mosley-Thompson, Ph.D.†
Director, Byrd Polar Research Center
Professor of Geography and University
Distinguished Scholar
The Ohio State University
Columbus, OH
Gerald R. North, Ph.D.
Distinguished Professor of Atmospheric
Sciences and Oceanography
Texas A&M University
College Station, TX
Michael Oppenheimer, Ph.D.
Albert G. Milbank Professor of
Geosciences and International Affairs
Department of Geosciences and
Woodrow Wilson School of Public and
International Affairs
Princeton University
Princeton, NJ
Jonathan T. Overpeck, Ph.D.
Co-Director, Institute of the
Environment
Professor
Department of Geosciences
Department of Atmospheric Sciences
University of Arizona
Tucson, AZ
Ronald G. Prinn, Ph.D.
TEPCO Professor of Atmospheric Science
Director, Center for Global Change
Science
Co-Director, Joint Program on the
Science
and Policy of Global Change
Massachusetts Institute of Technology
Cambridge, MA
The Endorsers of
An Open Letter to Congress from U.S. Scientists on Climate Change and
Recently Stolen Emails
Updated December 7, 2009
† = Member, National Academy of Sciences Institutional affiliation for identification purposes only

The Endorsers of
An Open Letter to Congress from U.S. Scientists on Climate Change and
Recently Stolen Emails
Updated December 7, 2009
† = Member, National Academy of Sciences Institutional affiliation for identification purposes only
‡ = Member, National Academy of Engineering
Alan Robock, Ph.D.
Distinguished Professor
Rutgers University
President, Atmospheric Sciences
Section, American Geophysical Union
Chair-Elect, Atmospheric and
Hydrospheric Sciences Section,
American Association for the
Advancement of Science
New Brunswick, NJ
Benjamin D. Santer, Ph.D.
Program for Climate Model Diagnosis
and Intercomparison
Lawrence Livermore National Laboratory
Livermore, CA
William H. Schlesinger, Ph.D.†
President
Cary Institute of Ecosystem Studies
Millbrook, NY
Daniel P. Schrag, Ph.D.
Sturgis Hooper Professor of Geology
Professor of Environmental Science and
Engineering
Director, Harvard University Center for
the Environment
Cambridge, MA
Drew Shindell, Ph.D.
Senior Scientist
NASA Goddard Institute for Space
Studies
New York, NY
Richard C. J. Somerville, Ph.D.
Distinguished Professor Emeritus and
Research Professor
Scripps Institution of Oceanography
University of California, San Diego
La Jolla, CA
Lonnie G. Thompson, Ph.D.†
University Distinguished Professor
School of Earth Sciences
Senior Research Scientist
Byrd Polar Research Center
Columbus, Ohio
Warren M. Washington, Ph.D.‡
Senior Scientist
National Center for Atmospheric
Research
Boulder, CO
Donald J. Wuebbles, Ph.D.
The Harry E. Preble Professor of
Atmospheric Sciences
Department of Atmospheric Sciences
University of Illinois, Urbana-Champaign
Urbana, IL
Carl Wunsch, Ph.D.†
Cecil and Ida Green Professor of
Physical Oceanography
Massachusetts Institute of Technology
Cambridge, MA

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