Up in smoke ping.
Human beings have used controlled burning since before we were fully human. For all manner of reasons.
Unfortunately, not a single word in this article about how human started fires have altered Africa’s climate, fauna and flora. Guess that would be un-PC - the ‘noble savage’ lives on.....
***It has been estimated that early humans could have had the ability to start fires about 300,000 years ago,****
Was that when the atmosphere was composed of 30% oxygen instead of the 19% today? What a blaze that would have made!