Morrison loves to peddle the line that action on climate change would be costly and damage the economy.
However, so far there's been a cost of $300m from over 5000 insurance claims (and that's not including the losses and damages from the past few days). That figure will balloon. No surprise if it passes a billion dollars. Insurance companies were already including climate change in their risk assessments. Everyone will pay more in higher premiums especially those in high fire risk areas.
Then add the cost of ADF deployment; mass evacuation, rescue and support for victims; financial support payments for volunteer firies; health costs yet to materialise from likely respiratory and other physical medical long-term problems plus mental illness (PTSD); the massive loss of income for local businesses and the tourism industry during its peak season; the long-term economic cost to these local communities (eg: there's estimates of a half a billion animals
having perished in these fires including masses of livestock), ... etc.
There's a far greater economic cost for inaction and denial.