Principia Scientific International

Richard Tol Dons Cloak of Climate Denial

This is a guest post by Cindy Baxter.

They were all there.  A veritable octopus of conflicting climate denial arguments, from “it’s not happening” to “satellite data says it’s all the forests’ fault” to “it’s the sun,” “we can adapt” - and everything in between. 

This small gathering of climate science deniers, including Conservative MP and member of the UK House of Commons Select Committee on Climate change, oilman Peter Lilley, and Conservative MP for Monmouth, David Davies, met in a small room buried on the third floor of the UK’s House of Commons in London last week.

They were there to hear Professor Richard Tol, advisor to the Global Warming Policy Foundation and IPCC Working Group II economics chapter Coordinating Lead Author. 

The meeting was organized by Irish MP and climate denier Sammy Wilson, on behalf of “Repeal the Act” a group that argues the “climate is always changing.”

For someone who claims he’s not a climate denier, Tol certainly managed to belt out a number of the classic denier arguments in the next two hours. 

John O'Sullivan

John O'Sullivan


  • Credentials heavily contested. No reliable source available.


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”. 

Principia Scientific International

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