The wildfire danger in eastern Australia is now "off the scale". They had to extend the scale up from 100 to 150.

The immediate cause is due to conditions that vary. It probably won't be this bad next year, and even 30 years from now it won't be this bad every year.

However, many of these conditions will become gradually worse, on the average, due to global heating. It is expected to increase the frequency of droughts and the frequency of heavy rains. In 30 years, there will be occasional years that extend the scale to 200 or 300. Expect towns and villages to have no trees or bushes, and be surrounded by 50-meter firebreaks.