There is no climate emergency

 A global network of 700 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, USA; WCD Ambassador
2. Ralph B. Alexander, Emeritus Professor of Physics, Science Writer
3. Raphael D’Alonzo, Analytical Chemist, Retired Associate Director, the Proctor & Gamble Company
4. Anthony J. Armini, Retired Founder and CEO Implant Sciences Corp.., USA
5. Dr. Malgorzata Askanas, Senior R&D Associate at the Aurora Biophysics Research Institute
6. Hans-Peter Bär, Emeritus Professor of Pharmacology, Canada and Former Dean of Basic Medical Sciences, American University of Barbados, Barbados
7. James R. Barrante, Emeritus Professor of Physical Chemistry, USA. Passed away recently.
8. Charles G. Battig, Climate Adviser, Heartland Institute, USA
9. Larry Bell, Endowed Professor of Space Architecture, University of Houston, USA
10. David J. Benard, Chemical Physicist & Co-inventor of the Oxygen-iodine Chemical Laser
11. Edward X. Berry, PhD, Atmospheric Physicist, American Meteorological Society, Author, Climate Physics LLC, USA
12. Jared L. Black, Numerical Analysis Consultant, Sc.D., USA
13. Elliott D. Bloom, Emeritus Professor of Particle Physics and Astrophysics, KIPAC-SLAG, Stanford University
14. David Boleneus, Professional Geologist
15. Daniel Botkin, Emeritus Professor of Biology, Climate Researcher, Author of the Book: Twenty-five Myths That Are Destroying the Environment, USA
16. Robert L. Bradley Jr., CEO and Founder of the Institute for Energy Research
17. James W. Buell, PhD, Aquatic Biologist, Consultant
18. David Burton, System and Computer Scientist, Expert Reviewer of AR5 and AR6, Member of the CO2 Coalition, and Creator of the website
19. Sharon R. Camp, PhD, Retired Analytical Chemist and Environmental Scientist.
20. Nick Capaldi, PhD, Author Books on Logic, the Scientific Method and the Philosophy of Science
21. Roy Clark, Climate Researcher, Retired Engineer, California
22. Sabin W. Colton, PhD, Biochemist and Marine Biologist
23. Martin Cornell, Retired Senior Scientist, Dow Chemical Company, USA
24. Joseph S. d’Aleo, Professor of Meteorology and Climatology at Lyndon Stage College, Founder of, First Director of meteorology of the Weather Channel, USA
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, USA
29. Harold H. Doiron, Retired NASA Engineer, USA. Passed away recently.
30. Mohan Doss, Professor, Fox Chace Cancer Center, Philadelphia, One of the Founding Members of SARI.
31. Jack D. Downing, Geologist and Geophysicist
32. Paul Driessen, Senior Policy Advisor, Committee for a Constructive Tomorrow (CFACT) and Congress of Racial Equality (CORE)
33. John Droz jr, Physicist, Founder of AWED Alliance, USA
34. John Dale Dunn, MD, JD, Lecturer Carl R. Darnall Army Medical Center, Fort Hood, Texas
35. Freeman Dyson, Emeritus Professor Natural Sciences, Institute of Advanced Study, Princeton University, USA, passed away 28 February 2020
36. Vincent Esposito, Adjunct Professor University of Pittsburg, PA, USA; Doctor of Science in Nuclear Engineering (Un. Fo Viginia), Retired Manager from Westinghouse Electric Company
37. Peter Farrell, Fellow of the US National Academy of Engineering, USA
38. Rex Fleming, Research Scientist, Author of Book on Carbon Dioxide Fallacy, Retired President Global Aerospace, USA
39. Jim Folcik, Geosciences Manager Extraction Oil & Gas
40. Patrick Frank, PhD, SLAC National Accelerator Laboratory, Stanford University
41. Gordon J. Fulks, Astrophysicist, Board of Directors CO2 Coalition, Co-founder Global Warming Realists
42. Terry Gannon, Physicist, Retired Semiconductor Executive, USA
43. Nicholas De Gennaro, PhD PE, Coastal Engineer, Southport North Carolina.
44. Ulrich H. Gerlach, Professor of Mathematics, Ohio State University, USA
45. Ivar Giaever, 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
46. Steve Goreham, Executive Director, Climate Science Coalition of America, USA
47. Laurence I. Gould, Professor of Physics, University of Hartford, Past Chair, New England Section of the American Physical Society.
48. Mike Gruntman, Professor of Astronautics, space physics and space technology; space and rocket history University of Southern California
49. Lyle W. Hancock, Professional Mathematician
50. Bryan Haycock, PhD, Adjunct Faculty at a University in the state of Utah.
51. Howard C. Hayden, Emeritus Professor of Physics, University of Connecticut, USA
52. David Heald, Retired Electrical Engineer, USA
53. Oliver Hemmers, Retired Executive Director of the Harry Reid Center at the University of Nevada, Las Vegas
54. 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)
55. Jim Hollingworth, Social Scientist; Book: ‘Climate Change: A Convenient Truth’
56. Edward Huff, PhD, Retired NASA Senior Scientist 55. Kathryn E. Kelly, President Delta Toxicology, USA
57. Kathryn E. Kelly, President Delta Toxicology, USA
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, USA
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, USA); Member Scientists for Accurate Radiation Information (SARI), Member Nuclear Society (ANS)
65. M. 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. Dr. 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 Mc Cluskey, PhD, Physics
70. Richard McFarland, Retired NASA Physicist, USA
71. Marc Meier, PhD, Professor of Physics, University of Houston
72. Samuel H. Melfi, Emeritus Professor of Physics, UMBC, Retired NASA Scientist, USA
73. Kenneth Melvin, MD: retired Professor of Medicine, Portland, Oregon
74. Patrick J. Michaels, Competitive Enterprise Institute, Washington DC, USA
75. Ferenc 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, Ph.D., Physical Scientist at the USFS Rocky Mountain Research Station in Fort Collins, CO, USA, managing a fire-weather intelligence project
79. Thomas O’Connor, Member American Association of Petroleum Geologists, Washington, USA
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, USA
82. Arvid Pasto, PhD in 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, USA); 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, USA
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. Rick Sanders, M.A. Scientists for Accuracy in Radiation Information (SARI), Associate Editor, 21st Century Science and Technology Magazine
93. Charles L. Sanders, Retired Radiobiologist; Author of Radiobiology and Radiation Hormesis: New Evidence and Its Implications for Medicine and Society (Springer)
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. Thomas P. Sheahen, PhD, Chairman, Science and Environmental Policy Project
96. John Shewchuk, Meteorologist (CCM) and Atmospheric Researcher, USA
97. Robert P. Smith, PhD, P.E., Environmental Scientist and Professional Engineer
98. Willie Soon, Independent Scientist, USA
99. Walter Starck, PhD in 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, USA
102. Gerald M. Sulzer, MS Chemical Engineer, Retired Director of Technology, Albemarle Corporation, USA
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, USA
105. David E. Thompson, Emeritus Professor 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. Waheed Uddin, Professor of Engineering Science, University of Mississippi, Expert in Climate Modeling, Former Advisor UN
110. William B. Walters, Guggenheim Fellow, Professor of Atmospheric, Nuclear and Environmental Chemistry, University of Maryland, USA
111. James Wanliss, Professor of Physics, Presbyterian College USA
112. Steven E. Weismantel, Retired Engineer and Climate Researcher, USA
113. Chuck F. Wiese, Professional Meteorologist, USA
114. David Wojick, Cognitive Scientist, USA
115. Gregory R. Wrightstone, Expert Reviewer IPCCC, Geologist, Author, Senior Fellow Cornwall Alliance, Advisory Board of Heartland Institute
116. Thomas Wysmuller, Retired NASA Executive, USA
117. Bob Zybach, Program Manager, Oregon Websites and Watersheds Project INC., USA