PSI Acumen

John O'Sullivan

John O'Sullivan

 Credentials

  • Credentials heavily contested. No reliable source available.

 Background

John O'Sullivan is a UK-based climate denialist blogger, writer and the sole active director of Principia Scientific International - a membership group promoting fringe views on climate change science and role of carbon dioxide in the atmosphere. O'Sullivan, a former school teacher, claims the greenhouse effect caused by carbon dioxide is unproven and that human-caused climate change is a “fraud”. 

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