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tim33z11 karma

I’m from Melbourne and recall in early 2020 that smoke and ash was abundant even though most fires were hundreds of kilometres away. I also remember many of us were wearing those things called face masks to prevent some irritants getting into our respiratory system.

While as long as the planet has had trees, I’d expect there to have also been bushfires. What difference is there to the toxicity of trees and bush land burning now, compared to 100+ years ago?