The goal of a carbon neutral public sector by 2025 is being seen as challenging - but possible.
It's part of the Government's declaration of a climate change emergency.
Victoria University Professor James Renwick, who sits on the Climate Change Commission, told Mike Hosking there's a lot of low hanging fruit that could be done quickly.
As an example, he says switching government vehicles to electric, making buildings more energy-efficient, and getting rid of coal burners.
"Over the course of the next five years, it's going to take a bit of analysis as to what else can be done and where else the emissions are coming from and what we need to next."
He says that it will likely cost hundreds of millions of dollars, but no one is saying it's going to a be freebie.
"On the other hand, if we do take the lead internationally in doing this kind of thing, I think that's going to be good for business. It's going to attract investment from overseas."