The present cost disadvantages of wind and solar energy generation relative to coal-fired electricity generation are so great that it will take probably generations before R&D can make them become cost competitive with coal-fired.

As there is no scientific evidence that anthropogenic CO2 emissions cause dangerous global warming, there is no urgency to reduce those emissions.(The climate modelling and assertions of the alarmist climate scientists do not qualify as science.)

Consequently, it makes a lot of scientific and economic sense for Australia to lag way behind China, Europe and the USA, and then to capitalise on those countries' technological breakthroughs in renewable energy, if and when they eventuate