"Your conspiracy theory seemed utterly stupid," Herald Sun columnist Andrew Bolt told soon-to-be One Nation Senator for Queensland Malcolm Roberts in 2012.

Back then, Roberts was project leader for the Galileo Movement, a group that calls man-made induced climate change a "UN political fabrication" and a conspiracy involving the Bureau of Meteorology and the CSIRO, among other things. Bolt confronted Roberts after a Fairfax interview in which Roberts had claimed that climate change science had been "captured by some of the major banking families in the world" who form a "tight-knit cabal."