This is an important policy debate that should not be distracted by extreme views. People should have their say but their contribution should be judged by its quality, not its volume. Australia must reject the extremes of the debate, no matter from where on the political spectrum they emerge. We see those who don't believe in climate science arguing that the government shouldn't act. I don't agree. I'll be taking my science from the CSIRO, not the radio shock jocks. We'll also see those who accept the science but whose environmentally extreme solutions would endanger our economy and the jobs of working people. We should reject that approach, too.