All the pollution you describe is fixable. In Europe, plastics are being created - and used in manufacture - that are biodegradable. Much of the landfill issue is just a problem of bad governance, with a resource being wasted. Why fill the landscape with buried trash that could pollute groundwater when it could be burned for energy, with reasonable safeguards as to airborne pollution?
Over and over and over, we keep running into this self deception that we will harm the earth permanently, when in fact, the earth has experienced vastly worse disasters than we can imagine. Scientists can tell you that 90+% of all the species that ever lived are gone and that lakes all over the world were blasted into place by asteroids.
I don't like pollution but I would like going back to primitive living even less. We need to let go of "religious" obsessions about the environment and deal with it in a moderate, rational manner.
metatron