Pseudoscience Dictionary: Geoengineering

Pseudoscience: Consists of statements, beliefs, or practices that are claimed to be both scientific and factual but are incompatible with the scientific method (unproven, not testable, or opposed to the consensus of traditional science).

Geoengineering

Definition: Geoengineering, also called climate engineering, refers to proposed or existing technological approaches intended to deliberately influence Earth’s climate. These include carbon dioxide removal, which seeks to reduce atmospheric greenhouse gas concentrations, and solar radiation modification, which proposes reflecting more sunlight into space to reduce global temperatures. Some methods are actively researched, while others remain theoretical or experimental. Geoengineering is frequently confused with weather modification techniques such as cloud seeding, which attempts to increase precipitation under suitable atmospheric conditions. Although these are legitimate subjects of scientific investigation, conspiracy theories claim that governments secretly use geoengineering to control hurricanes, create droughts, manipulate populations, or disperse harmful chemicals through aircraft condensation trails, commonly called “chemtrails.” These extraordinary claims lack credible scientific evidence.

Reasoning: Scientific research distinguishes legitimate geoengineering technologies from unsupported conspiracy theories about secret weather manipulation. According to the U.S. Environmental Protection Agency (EPA), geoengineering encompasses genuine scientific proposals, including atmospheric carbon removal, stratospheric aerosol injection, and marine cloud brightening. However, the agency explains that aircraft condensation trails form when water vapor from jet exhaust encounters cold atmospheric conditions and are not evidence of secret chemical spraying. Further, the National Oceanic and Atmospheric Administration (NOAA) states that no existing technology can create, strengthen, steer, or control hurricanes. Claims that hurricanes such as Helene and Milton were artificially generated or directed through geoengineering are therefore unsupported. Similarly, the National Academies of Sciences, Engineering, and Medicine recognizes solar geoengineering as a legitimate research topic but emphasizes substantial scientific uncertainties, environmental risks, and the need for responsible oversight. A May 2026 United Nations Environment Programme assessment concluded that current evidence does not support solar radiation modification as a viable solution to climate change, particularly because it does not address the accumulation of greenhouse gases and may introduce unintended environmental consequences. Importantly, limited weather modification activities, including cloud seeding, are real and documented. However, their existence does not establish that governments possess technology capable of controlling major weather systems or that ordinary aircraft trails represent covert atmospheric manipulation. While geoengineering research raises legitimate environmental, ethical, and regulatory concerns, claims of widespread secret weather control remain scientifically unsubstantiated.

More Information

• About Geoengineering – U.S. Environmental Protection Agency
• Fact Check: Debunking Weather Modification Claims – NOAA
• Information on Contrails and Chemtrail Claims – EPA
• Reflecting Sunlight: Recommendations for Solar Geoengineering Research – National Academies
• Solar Radiation Modification: Scientific Evidence Does Not Support SRM as a Viable Climate Solution – UNEP (2026)
• Statement on Weather Modification – World Meteorological Organization

Conclusion: Geoengineering itself is not pseudoscience, as it encompasses legitimate scientific research into climate intervention and carbon removal. However, claims that governments secretly control hurricanes, deliberately create natural disasters, or conduct widespread chemical spraying through commercial aircraft lack credible scientific evidence. Although limited weather modification techniques exist, they do not demonstrate the ability to control major weather systems. Presenting these unsupported conspiracy theories as established scientific facts constitutes pseudoscience. Legitimate concerns about the potential environmental consequences of geoengineering should be distinguished from fabricated claims of covert weather manipulation.