The fires are happening, any satellite can confirm that. Easily. The the head of the public institution doing very scientific work to track that got fired because he wasn't a true "Brazilian" since he was obviously trying to hurt his country by reporting the truth.
It seems we have imported the dualism in politics from the US/Argentina and everything now now is "us" vs "them". It's impossible to have a reasonable discussion about public policies without people resorting to hidden motives and conspiracy theories.
I've followed the international news about the Amazon fires and there's very little wrong facts in them. But unfortunately they don't help our current extreme right administration so.
I hope reasonable minds prevail in the next election and we're able to elect an administration that is rational. Unfortunately, due to the increasing duopoly in politics, we'll probably have a extreme left president. It's all very sad.