It is silly to speculating about the results of bacteria somehow limiting or compensating for their excess O2 production, especially since there could be many w

It is silly to speculating about the results of bacteria somehow limiting or compensating for their excess O2 production, especially since there could be many ways it could have been done (not necessarily limiting, but evolving CO2 or CH4 producing species to counterbalance, etc.). Such speculations could just as easily conclude that we could have evolved a billion years earlier if they'd "done something", and we'd now be 1000x as mature a species. Even if we make your assumption that humans are somehow entitled to do whatever we want, it is massively stupid to ignore the fact that we depend on an extremely complex web of life to survive. We can break some links, but breaking too many will literally be suicidal. When we see that we are doing something that WILL inevitably break many of those links (not to mention flood most of our major cities in decades, which is already happening), the only wise thing to do is to adjust course to prevent that destruction. Yet you seem to think it is a good idea to spread ignorance and stupidity. That way is guaranteed to NOT advance even humanity's self-centered interests. Do you have some fetish about burning hydrocarbons or some religion that makes it sacred?