NY Times; Scientists Just Say No to ‘Chemtrails’ Conspiracy Theory

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NY Times; Scientists Just Say No to ‘Chemtrails’ Conspiracy Theory

Conspiracy theories can be stubborn, particularly in the echo chamber of the internet. One persistent belief in some quarters is that the government — or business, perhaps — is deploying a fleet of jet aircraft to spray chemicals into the sky to control the population, food supply or other things.

As evidence, they point to what they call “chemtrails,” which are more commonly known as contrails, or condensation trails, produced at high altitudes as water vapor in jet engine exhaust condenses and freezes. Adding fuel to the chemtrails theory is the fact that there are a few legitimate reasons for atmospheric spraying — “seeding” clouds to make rain, for example — and in recent years there has been some research on the idea of spraying chemicals as a potential way to fight global warming.

But now, scientists have become more organized in their efforts to shoot down the idea, conducting a peer-reviewed study in Environmental Research Letters that debunks chemtrails supporters’ claims.


Really?  Then what are all these aerosol spray for profit companies and college degrees in Geoengineering for then?

For-Profit Weather Modification. Private and Quasi-Government Corporations

www.weathermodification.orgFull Corporate Roster



or the colleges with degrees in GE

Get Your College Degree

in Geoengineering



“But there are at least 26 reasons why geoengineering may be a bad idea. These include disruption of the Asian and African summer monsoons, reducing precipitation to the food supply for billions of people; ozone depletion; no more blue skies; reduction of solar power; and rapid global warming if it stops.”

 – Alan Robock, Professor, Department of Environmental Sciences,
Rutgers University, 2013



About Us: The Oxford Geoengineering Programme was founded in 2010 as an initiative of the Oxford Martin School at the University of Oxford. Geoengineering – the deliberate large-scale intervention in the Earth’s natural systems to counteract climate change – is a contentious subject and rightly so.

The Oxford Geoengineering Programme seeks to engage with society about the issues associated with geoengineering and conduct research into some of the proposed techniques. The programme does not advocate implementing geoengineering, but it does advocate conducting research into the social, ethical and technical aspects of geoengineering. This research must be conducted in a transparent and socially informed manner.

Harvard University:
Center For The Environment

About the Working Group: Solar geoengineering is the concept of

deliberately cooling the Earth by reflecting a small amount of inbound sunlight back into space. This seminar series, held jointly by the Harvard University Center for the Environment (HUCE) and MIT’s Joint Program on the Science and Policy of Global Change, will explore the science, technology, governance and ethics of solar geoengineering. In bringing together international experts, participants will learn some of the greatest challenges and hear opinions on how this technology could and should be managed.



University of Texas, Austin

The Center for Integrated Earth System Science (CIESS) is a cooperative effort between the Jackson School of Geosciences and the Cockrell School of Engineering. The Center for Integrated Earth System Science (CIESS) seeks a deeper understanding of the physical chemical, biological and human interactions that determine the past, present and future states of Earth.

Specifically, the goal of CIESS is to answer a wide variety of earth science questions including:

  • How can we use, in situ measurements, global satellite observations, proxy data, and computational analysis to describe and understand Earth’s dynamic system?
  • What has been the impact of human activity on Earth?
  • What is the future of our environment under climate change, land use change, and water use change?
  • How can we reduce modeling uncertainties and make reliable predictions of extreme events at regional scales? How can we make rational decisions under uncertainties in order to mitigate, prevent, plan for or adapt to the negative potential impacts of global change?


Columbia University

A complementary degree (Master of Arts in Climate and Society) is available through Columbia University for students who are more directly interested in social or planning aspects of climate impacts, and are not quantitatively oriented.



University of California at Berkeley Geoengineering

Geoengineering is an interdisciplinary program that offers excellent opportunities for students with background in Engineering and Earth Sciences who are interested in all aspects of soil and rock mass characterization, development of advanced simulation techniques, performance of earth structures and underground space, and identification and mitigation of natural hazards.


University of Michigan

“For cloud seeding – we are already doing that. We have satellite images of ship-tracks available that tell us that in fact the emissions from the ships brighten the clouds in the little lines you see (chemtrails) and change the radius of the particles in the clouds. So we’re already doing that.” …. We also know that the aerosols that we are currently emitting are already protecting us from global warming to a certain extent…We have already seeded marine clouds.” Professor Joyce Penner, U of Michigan

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