There is no climate emergency

 A global network of 900 scientists and professionals has prepared this urgent message. Climate science should be less political, while climate policies should be more scientific. Scientists should openly address uncertainties and exaggerations in their predictions of global warming, while politicians should dispassionately count the real costs as well as the imagined benefits of their policy measures.

Natural as well as anthropogenic factors cause warming

The geological archive reveals that Earth’s climate has varied as long as the planet has existed, with natural cold and warm phases. The Little Ice Age ended as recently as 1850. Therefore, it is no surprise that we now are experiencing a period of warming.

Warming is far slower than predicted

The world has warmed significantly less than predicted by IPCC on the basis of modeled anthropogenic forcing. The gap between the real world and the modeled world tells us that we are far from understanding climate change.

Climate policy relies on inadequate models

Climate models have many shortcomings and are not remotely plausible as global policy tools. They blow up the effect of greenhouse gases such as CO2. In addition, they ignore the fact that enriching the atmosphere with CO2 is beneficial.

CO2 is plant food, the basis of all life on Earth

CO2 is not a pollutant. It is essential to all life on Earth. Photosynthesis is a blessing. More CO2 is beneficial for nature, greening the Earth: additional CO2 in the air has promoted growth in global plant biomass. It is also good for agriculture, increasing the yields of crops worldwide.

Global warming has not increased natural disasters

There is no statistical evidence that global warming is intensifying hurricanes, floods, droughts and suchlike natural disasters, or making them more frequent. However, there is ample evidence that CO2-mitigation measures are as damaging as they are costly.

Climate policy must respect scientific and economic realities

There is no climate emergency. Therefore, there is no cause for panic and alarm. We strongly oppose the harmful and unrealistic net-zero CO2 policy proposed for 2050. If better approaches emerge, and they certainly will, we have ample time to reflect and re-adapt. The aim of global policy should be ‘prosperity for all’ by providing reliable and affordable energy at all times. In a prosperous society men and women are well educated, birthrates are low and people care about their environment.


1. Richard Lindzen, Emeritus Professor Atmospheres, Oceans and Climate, MIT; WCD Ambassador
2. Ralph B. Alexander, Emeritus Professor of Physics, Science Writer
3. Anthony J. Armini, Retired Founder and CEO Implant Sciences Corp.
4. Dr. Malgorzata Askanas, Senior R&D Associate at the Aurora Biophysics Research Institute
5. Hans-Peter Bähr, Emeritus Professor of Pharmacology, Canada and Former Dean of Basic Medical Sciences, American University of Barbados, Barbados
6. Charles G. Battig, Climate Adviser, Heartland Institute
7. Larry Bell, Endowed Professor of Space Architecture, University of Houston
8. David J. Benard, Chemical Physicist & Co-inventor of the Oxygen-iodine Chemical Laser
9. Edward X. Berry PhD, Atmospheric Physicist, American Meteorological Society, Author, Climate Physics LLC
10. Jared L. Black, Numerical Analysis Consultant, ScD
11. Elliott D. Bloom, Emeritus Professor of Particle Physics and Astrophysics, KIPAC-SLAG, Stanford University
12. David Boleneus, Professional Geologist
13. Daniel Botkin, Emeritus Professor of Biology, Climate Researcher, Author of the Book: Twenty-five Myths That Are Destroying the Environment
14. Robert L. Bradley jr., CEO and Founder of the Institute for Energy Research
15. James W. Buell PhD, Aquatic Biologist, Consultant
16. Dr. H. Sterling Burnett PhD, Applied Philosophy with a specialization in Environmental Ethics, past Senior Fellow of the National Center for Policy Analysis, now Senior Fellow Heartland Institute
17. David Burton, System and Computer Scientist, Expert Reviewer of AR5 and AR6, Member of the CO2 Coalition, and Creator of the website
18. Sharon R. Camp PhD, Retired Analytical Chemist and Environmental Scientist
19. Nick Capaldi PhD, Author Books on Logic, the Scientific Method and the Philosophy of Science
20. Roy Clark, Climate Researcher, Retired Engineer, California
21. Sabin W. Colton PhD, Biochemist and Marine Biologist
22. Martin Cornell, Retired Senior Scientist, Dow Chemical Company
23. Joseph S. D’aleo, Professor of Meteorology and Climatology at Lyndon Stage College, Founder of, First Director of meteorology of the Weather Channel
24. Raphael D’Alonzo, Analytical Chemist, Retired Associate Director, the Proctor & Gamble Company
25. George Davey, Physicist, University of Iowa
26. Don Dears, Retired Senior Executive GE Company, BS Engineering from United States Merchant Marine Academy
27. James DeMeo PhD, Retired Expert in Earth and Atmospheric Science, Oregon
28. David Deming, Professor of Arts & Sciences, University of Oklahoma
29. Mohan Doss, Professor, Fox Chace Cancer Center, Philadelphia, One of the Founding Members of SARI.
30. Jack D. Downing, Geologist and Geophysicist
31. Paul Driessen, Senior Policy Advisor, Committee for a Constructive Tomorrow (CFACT) and Congress of Racial Equality (CORE)
32. John Droz jr., Physicist, Founder of AWED Alliance
33. John Dale Dunn MD, JD, Lecturer Carl R. Darnall Army Medical Center, Fort Hood, Texas
34. Vincent Esposito, Adjunct Professor University of Pittsburg, PA, Doctor of Science in Nuclear Engineering (Un. FoViginia), Retired Manager fromWestinghouse Electric Company
35. Peter Farrell, Fellow of the US National Academy of Engineering
36. Rex Fleming, Research Scientist, Author of Book on Carbon Dioxide Fallacy, Retired President Global Aerospace
37. Jim Folcik, Geosciences Manager Extraction Oil & Gas
38. Patrick Frank PhD, SLAC National Accelerator Laboratory, Stanford University
39. Gordon J. Fulks, Astrophysicist, Board of Directors CO2 Coalition, Co-founder Global Warming Realists
40. Terry Gannon, Physicist, Retired Semiconductor Executive
41. Nicholas De Gennaro PhD, PE, Coastal Engineer, Southport North Carolina
42. Ulrich H. Gerlach, Professor of Mathematics, Ohio State University
43. Ivar Giaever, Nobel Laureate Professor, Nobel Prize Winner in Physics, Emeritus Professor of the Rensselaer Polytechnic Institute, Chief Technology Officer of Applied Biophysics Inc., Fellow of the American Physical Society; Honorary WCD Ambassador
44. Steve Goreham, Executive Director, Climate Science Coalition of America
45. Laurence I. Gould, Professor of Physics, University of Hartford, Past Chair, New England Section of the American Physical Society
46. Mike Gruntman, Professor of Astronautics, Space Physics and Space Technology, Space and Rocket History University of Southern California
47. Lyle W. Hancock, Professional Mathematician
48. Dr. William Happer, Professor Emeritus in the Department of Physics at Princeton University
49. Bryan Haycock PhD, Adjunct Faculty at a University in the state of Utah
50. Howard C. Hayden, Emeritus Professor of Physics, University of Connecticut
51. David Heald, Retired Electrical Engineer
52. Oliver Hemmers, Retired Executive Director of the Harry Reid Center at the University of Nevada, Las Vegas
53. Gary L. Hoe P.E., Retired Colonel USAF, Technical Director of several Nuclear Weapon Effects Tests at the Nevada Test Site, Member Scientists for Accurate Radiation Information (SARI)
54. Jim Hollingworth, Social Scientist, Book: ‘Climate Change: A Convenient Truth’
55. Dr. Gary M. Hoover, Geophysicist, Lifetime Experience in the Geo-Energy Industry, Retired Member Board of Directors Geo-Service Company
56. Edward Huff PhD, Retired NASA Senior Scientist
57. Kathryn E. Kelly, President Delta Toxicology
58. Hugh Kendrick PhD, Retired Director Plans and Analysis, Office of Nuclear Reactor Research, US Dept. of Energy, Fellow American Physical Society
59. Stephen C. Knowles, Marine Scientist and Geologist, Beacon, New York
60. Wayne P. Kraus, Member American Institute of Chemical Engineers (AIChE)
61. Jay Lehr PhD, Senior Policy Analyst for the International Climate Science Coalition, Former Science Director of the Heartland Institute
62. David P. Lentini, Chemist and Patent Attorney, New Hampshire
63. Howard R. Lowe, Prof. Eng., Geologist
64. Jeffrey Mahn, Retired Nuclear Engineer Sandia National Laboratories (New Mexico), Member Scientists for Accurate Radiation Information (SARI), Member Nuclear Society (ANS)
65. Matt Malkan PhD, Distinguished Professor of Physics and Astronomy, UCLA
66. James A. Marsh, Emeritus Professor of Immunology, Cornell University, Dept. of Microbiology and Immunology
67. Andy May, Writer and Retired Petrophysicist
68. Gene McCall, Consultant to the Defense Science Board, Former Consultant to the Department of Energy on Issues related to Inertial Fusion, Former Member and Chairman of the USAF SAB, Former Member of the Senior Review Group to the Defense Airborne, Airborne Reconnaissance Office (DARO) and Former Chairman of the Technology Assistance panel fir DARO
69. Craig McCluskey PhD, Physics
70. Richard McFarland, Retired NASA Physicist
71. Mark Meier PhD, Professor of Physics, University of Houston
72. Samuel Melfi, Emeritus Professor of Physics, UMBC, Retired NASA Scientist
73. Kenneth Melvin MD, Retired Professor of Medicine, Portland, Oregon
74. Patrick J. Michaels, Competitive Enterprise Institute, Washington DC
75. Ference M. Miskolczi, Retired NASA/AS&M Senior Scientist, Foreign Associate Member of the Hungarian Academy of Sciences
76. James Moore, Commercial Fisherman, President Alaska Trawlers Association, Executive Committee Northern Southeast Regional Aquaculture Association, Board member Amstrong Keta Inc.
77. Daniel W. Nebert, Professor Emeritus, Department of Environmental Medicine and Center for Environmental Genetics, University of Cincinnati
78. Ned Nikolov PhD, Physical Scientist at the USFS Rocky Mountain Research Station in Fort Collins CO, Managing a Fire-Weather Intelligence Project
79. Thomas O’Connor, Member American Association of Petroleum Geologists, Washington
80. Kenton Oma, Retired PE Chemical Engineer, Environmental Engineering, Environmental Consultant, R&D at DOE Nuclear Facility
81. Trueman D. Parish, Retired Director of Engineering Research Eastman Chemical Company
82. Arvid Pasto PhD, Ceramics, Retired from the Oak Ridge National Laboratory, TN
83. Charles W. Pennington, Senior Vice President of Engineering NAC International (Retired), Secretary, XLNT Foundation, Board of Directors
84. Jeffrey S. Philbin, Retired Nuclear Engineer Sandia National Laboratories (New Mexico), Independent Consultant in Nuclear Facility Design and Safety Analysis, Nuclear Criticality Safety and Weapon Response
85. James M. Policelli, Registered Professional Engineer
86. Herman A. Pope, Retired Aerospace Engineer NASA-JSC
87. Willem Post, Independent Researcher regarding Energy and Environment
88. Kenneth L. Purdy, Management Consultant, Retired Naval Officer in Operational Intelligence
89. Forrest J. Remick, Emeritus Professor of Nuclear Engineering, Emeritus Assoc. VP for Research at the Pennsylvania State University, Retired Commissioner, US Nuclear Regulatory Commission
90. Phil Robinson, Retired Chemist in the Aluminium and Steel Industry
91. James H. Rust, Emeritus Professor of Nuclear Engineering, Georgia Institute of Technology
92. Charles L. Sanders, Retired Radiobiologist, Author of Radiobiology and Radiation Hormesis: New Evidence and Its Implications for Medicine and Society (Springer)
93. Rick Sanders M.A., Scientists for Accuracy in Radiation Information (SARI), Associate Editor, 21st Century Science and Technology Magazine
94. John A. Shanahan, Civil Engineer with career in Nuclear Power, Public Education about Fossil Fuels (including question of man-made Global Warming) and Nuclear Power through website:
95. Dr. Thomas P. Sheahen, Chairman, Science & Environmental Policy Project
96. John Shewchuk, Meteorologist (CCM) and Atmospheric Researcher
97. Robert P. Smith PhD, P.E., Environmental Scientist and Professional Engineer
98. Willie Soon, Independent Scientist
99. Walter Starck PhD, Marine Science, Pioneer in Coral Reef Studies, Policy Advisor to The Heartland Institute
100. Jim Steele, Emeritus Director Sierra Nevada Field Campus, San Francisco State University
101. Ronald Stein, Professional Engineer, Policy Adviser to Heartland Institute on Energy, and Co-Author of the Amazon 5-Star rated books “Energy Made Easy” and “Just GREEN Electricity”
102. Gerald M. Sulzer, MS Chemical Engineer, Retired Director of Technology, Albemarle Corporation
103. Tomer D. Tamarkin, Physicist, Founder and President/CEO of Energycite Inc., President and Chairman of ClimateCite Inc.
104. Paul Taylor, Energy Economist, Recipient Rossitor Raymond Award, Golden Colorado
105. David E. Thompson, Professor Emeritus Mechanical Engineering and Computer Science, Dean Emeritus College of Engineering, University of Idaho
106. Cecil Joe Tomlinson, Retired Boeing Senior Principle Engineer
107. Kip Trout, Lecturer in Physics, The Pennsylvania State University – York Campus
108. Richard Trzupek, Chemist and Air Quality Expert
109. William B. Walters, Guggenheim Fellow, Professor of Atmospheric, Nuclear and Environmental Chemistry, University of Maryland
110. James Wanliss, Professor of Physics, Presbyterian College
111. Steven E. Weismantel, Retired Engineer and Climate Researcher
112. Chuck F. Wiese, Professional Meteorologist
113. David Wojick, Cognitive Scientist
114. Gregory R. Wrightstone, Expert Reviewer IPCC, Geologist, Author, Member CO2 Coalition
115. Thomas Wysmuller, Retired NASA Executive
116. Bob Zybach, Program Manager, Oregon Websites and Watersheds Project Inc.