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There is arson, but there isn't more arson today than in the past and the majority of fires were caused by lightning.

These fires were predicted ten years ago and they were not caused by arson according to the authorities but due to extreme heat and dry conditions.

The fires are obviously much worse due to high temps

It's less obvious that the high temps are caused by climate change. Directionally, it makes sense -- but how much of the delta temp is variation?

That could be your imagination. Australia's temperature is quite in the normal range, similar to that of 1960s.

https://weatherspark.com/h/y/149434/2020/Historical-Weather-...

https://weatherspark.com/h/y/149434/1960/Historical-Weather-...

https://www.google.com/amp/s/amp.theguardian.com/australia-n...

Hottest year on record for Australia was 2019 (just ended).

Almost 3 degrees F over average.

High temperatures dry things out and make them easier to burn

This is very, very wrong. If you want to cherry pick, I can too - literally days ago, western Sydney recorded its hottest ever temperature (48.9C, 120F). This is a region adjacent to where a number of fires are still burning.

2019 was Australia's hottest year on record.