Principia Scientific International Background Principia Scientific International (PSI) is an organisation based in the United Kingdom which promotes fringe views and material to claim that carbon dioxide is not a greenhouse gas. PSI was formed in 2010 around the time they published their first book, titled Slaying the Sky Dragon: Death of the Greenhouse Gas Theory.
— Weiterlesen www.desmogblog.com/principia-scientific-international
Kon/Spira[l] 