Depends on which side you’re on.
Since I’d never heard of the prominent Professor Macintosh, I decided to look him up on the internet. I was surprised to find that he’s not a computer modeler at all! He’s a lawyer! And his position at ANU is Associate Director of the Centre for Climate Law and Policy. He does have a diploma in environmental studies on top of his 1998 bachelor of commerce and law degree, but he won a prize for environmental law, so that’s probably what he concentrated on while earning his diploma in 2001.
That’s what it takes to be described as a prominent climate scientist if you’re on the alarmist side. While rummaging around on the internet, I also found the transcript of an April 15 story broadcast by the Australian Broadcasting Corporation. The story starts by interviewing two climate skeptics, Professor Bob Carter, a geologist, and Professor Stewart Franks, an environmental engineer. They told a parliamentary commission that the scientific evidence doesn’t support alarmism. But then the reporter, Sabra Lane, was quick to point out that Carter and Franks aren’t climate scientists or even reputable scientists at all.