Why was the Clean Air Act amended in 1990?
A) to reduce sulfur dioxide emissions from electric power plants to half of 1980 levels
B) so flat fees for excessive pollution could be determined by the federal government
C) to reduce sulfur dioxide emission through command-and-control regulations
D) to reduce sulfur dioxide emissions from electric power plants to half of 1970 levels

Question

Quizplus · Accepted Answer

The Clean Air Act was amended in 1990 primarily to address acid rain, urban air pollution, and toxic air emissions. One of its key provisions was to significantly reduce sulfur dioxide emissions from electric power plants, aiming to cut them to half of their 1980 levels by using a market-driven approach of tradable emissions permits, rather than through command-and-control regulations.

Why Was the Clean Air Act Amended in 1990