There are many concrete steps a government could make.
To name two: Thermal Solar & (shock horror) nuclear.
The latter is where Oz should hold its head in shame.
To quote a SMH journo (maybe it was The Age) , we act like a bunch of vegetarians running an abattoir.
Happy to ship yellow-cake to whatever (bomb making) nation wants it....but cannot seem to find a few hundred square metres out of 7.6 million square kilometers we call planet Oz to run a power reactor.
The last nuke-power engineering class at an Oz University was taught close to 30 years ago....
The French have been running power reactors for decades, without incident and are now not far from migrating to fusion (look it up).
Yet every year we pump out more CO2 and kill a few thousand coal miners. (breathing coal dust isn't much better than asbestos)
I keep forgetting..our marvellous (CO2 producing & Hunter Valley vandalising) coal industry.....and wonder how much they donate to the ALP & Libs....