Actually pollution was controlled through lawsuits and discovery before Nixon. Nixon pre-empted massive court resolutions to prevent overnight sea changes requiring immediate cleanup and huge damage awards as private monitoring means and public understanding outed criminal polluters.
What's worse is when you think you can spot most of the propaganda and spin. Then you find the alt news sites that really have investigated the facts, collected evidence, and show the actual videos with analysis, and you realize how bad the propaganda problem really is. Basically we've been snookered for decades and generation, getting worse and worse.