One Nation, the right-wing populist party led by Pauline Hanson, maintains it stands alone among Australian political parties in its willingness to interrogate climate science—a position that has drawn sharp criticism from the scientific establishment. The scientific consensus linking anthropogenic combustion of fossil fuels to global temperature increases extends back 130 years. As empirical evidence has accumulated, Australia has confronted escalating weather extremes, with the electorate increasingly experiencing the tangible consequences of a warming climate.
Despite this wealth of evidence, One Nation persists in its denial, having historically drawn material from the now-defunct Galileo Movement. Malcolm Roberts, a former coalminer, served as project manager for this climate denial organization before his election as a One Nation senator. Professor Sarah Perkins-Kirkpatrick, a climate scientist at the Australian National University, characterized the party's position as comparable to flat-Earth advocacy. She cited substantial evidence demonstrating the intensification of extreme heat events globally since the 1950s, alongside increased drought severity and cyclone intensity.