When One Nation Senator Malcolm Roberts delivered his maiden speech to the Senate on September 13 of this year, he used the occasion to attack the science of climate change. In his speech, Roberts labelled climate change a “scam”, said it was prone to “hyperbolic predictions” and accused no less auspicious an organisation than the Bureau of Meteorology of manipulating climate data.

If Pauline Hanson is her party’s multiculturalism and cultural sensitivity expert, Malcolm Roberts entered Parliament as the self-proclaimed One Nation party climate change expert (with a background in coal mining).