"Malcolm, you are hearing the interpretation of a highly qualified scientist and you're saying, 'I don't believe that' -- is that right?" an incredulous Tony Jones asked of former One Nation Senator Malcolm Roberts during a recent Q&A episode. The then-senator had demanded incontrovertible proof of anthropogenic climate change from fellow panellist Professor Brian Cox, and made wild allegations about evidence having been manipulated by NASA, the Australian Bureau of Meteorology and others.

The former senator has made a name for himself challenging scientists and scientific institutions. Ostensibly he was holding them to a higher standard of evidence, although the same rigour clearly did not apply to his own, personal situation.