"Guest at "Potsdam-Institut für Klimafolgenforschung" (Potsdam Institute for Climate Impact Research), Brandenburg, Germany
Ken Caldeira Department of Global Ecology Carnegie Institution for Science 260 Panama St. Stanford, CA 94305 (650) 704-7212 kcaldeira@carnegiescience.edu
"Sonnenschutz für die Erde 27.6.2012, 10:47 Uhr
(...)
Welche Fragen sollte die Forschung noch untersuchen?
Zum Beispiel die, welche Partikel man einsetzen sollte. Meistens wird von Schwefeldioxid gesprochen, doch auch Aluminium und Titandioxid sind in der Diskussion. Ausserdem sollten wir verstehen, wie sich durch die Aerosole die Chemie in der Stratosphäre verändern und ob die Ozonschicht leiden würde. (...)" http://www.nzz.ch/wissen/wissenschaft/sonnenschutz-fuer-die-erde-1.17282213
Question by Neue Zürcher Zeitung, Zurich, Switzerland: "(...) What kind of questions ought to be investigated by the research?
For example that one what kind of particle ought to be used. Mostly it is talked about sulfate dioxide, but also aluminum and titandioxide are in discussion. Furthermore, we should understand how the chemistry of the stratosphere is changed by the aerosols and if the ozone layer would suffer. (...)" (Translation by Denglisch)
Department of Earth System Science, University of California, Irvine, Croul Hall, Irvine, CA 92697, USA 2 Near Zero, Carnegie Institution for Science, Stanford, CA 943053, USA 3 Metabunk.org, Shingle Springs, CA 95682, USA 4 Department of Global Ecology, Carnegie Institution for Science, Stanford, CA 94305, USA
"In addition, an increase in air travel over the last couple decades could also be fueling the belief in chemtrails, says Caldeira, and atmospheric changes from global warming may cause the artificial clouds to linger longer than they used to." https://www.smithsonianmag.com/smar...ks-chemtrails-conspiracy-live-180960139/
If - as Caldeira does it - it would be only the study at the Air University in Alabama the claimed weather modification efforts would be only speculative.
But there is a concertated action to avoid a substantial discussion in public about the atmospheric geoengineering activities already on the way. The rediculation of the topic is the best proof that it is already underway.
And David Keith is the public role player to the topic.