The perils that threaten the continuity of human civilization are so obvious that it is puzzling that so little is being done to counter these perils. In fact, much is being done to hasten their arrival.
Concerning toxic chemicals, the situation is roughly the same. As long as chemical companies can make huge profits selling toxic chemicals and allowing them to escape into the environment, they will do so. To the extent the chemical companies are forced to prevent escape of toxic chemicals into the environment, it is an obligation which they do not wish to bear and which their lobbyists toil daily to undermine.