One of the more innocent may be Andrew Markus, the Richard Pratt Professor of Jewish Studies, who is a prominent population booster, known for suggesting that opposition to Australia's high immigration is racist, and associated with the Scanlon foundation which has a pattern of similar claims. The Scanlon Foundation is the subject of a scathing article by John Masanauskas, who suggests it reflects rather the business interests of its founder Peter Scanlon. See www.heraldsun.com.au/business/
Pratt himself used the racism slur to deflect critics, claiming that he was suffering Nazi style persecution from the National Crimes Authority because of his Jewish background.
Closely associated with Pratt in his $2 billion rip-off was Amcor, the same company that set up the notorious A-Team which infiltrated various Green organisations and reduced them to impotence in opposing the logging of Victoria's old growth forests. See http://www.abc.net.au/
The extent to which the Australian Greens' lack of a population policy may be due to infiltration of this sort would be a worthy subject for a separate investigation. (The word "population" cannot even be found on the home page of the Australian Greens.) Note that the amount of money to be gained by logging additional forests in Australia is petty cash beside the vast sums to be gained by those in the property and construction or even the retail markets through pushing up Australia's population.