Take the following as truth: The acid rain cap and trade program created by Congress in 1990 reduced more pollution in the last decade than all other Clean Air Act command-and-control programs combined, and achieved significant reductions at two-thirds of the cost to accomplish those reductions using a command-and-control system.
Then the following statement: "The acid rain cap and trade program lowered pollution 30%." is true, false, or inconclusive?
Answer: Inconclusive