You are vastly, VASTLY, overestimating our understanding of the biology, chemistry, geology, & incredibly complex web of interdependencies and relationships that make up the environment we live in.

Much simpler to solve at the source (whatever actions are directly causing the damage) than the falacy of thinking we understand and have accounted for every possible permutation of events that will cascade after dumping material A into resource B. We don't even know what we don't know but this is the end game and mistakes here don't get do overs.

The next step in your logic is our 'traditional' response at this point: drop in another chemical/process that is supposed to 'fix' whatever mess up we did before. Haven't we learned from that yet, Deepwater Horizon was just the most recent example.