Wood ignites at temperatures in the hundreds of degrees. How are some wildfires supposedly started by sunlight without human action or lightning?

Question

Wood ignites at temperatures in the hundreds of degrees. How are some wildfires supposedly started by sunlight without human action or lightning?

In: 1508

Answer 1

Dry Thunderstorms/ Dry Lightning. Happens quite regularly here in Australia during summer, which often results in wildfires. I think these are also common over in the States as well. (Correct me If I’m wrong Yanks).