Somebody had to make them stop
For a century the factories on the river knew exactly what they were dumping, and dumped it anyway, because stopping cost money and the river was free. The Cuyahoga did not catch fire less often because Cleveland got richer. It stopped burning because a law arrived with a number on it and an inspector behind the number.
We write the standard and enforce it. The Clean Air Act, the Clean Water Act, the lead phaseout that pulled a neurotoxin out of every child’s bloodstream — none of it was voluntary, and all of it followed a public that finally refused to accept poisoned rivers as the price of a paycheck. The technologists are right that the scrubber matters. We just observe that the scrubber got installed the year it became illegal not to.
The property-rights camp’s favorite success — the acid-rain market — proves our point as much as theirs. Congress set the cap. Congress made the right to pollute scarce in the first place. The market only allocated what the law created.
Where we concede ground: We over-reached and lost trust — turning a rancher’s stock pond into a federal wetlands case did real damage.
What would change our mind: If a state gutted enforcement and its air and water stayed clean for a decade, the statute wasn’t the thing working.
Read the full synthesis: What would it take to clean up the air and water?