What is the history of the Clean Air Act?

What is the history of the Clean Air Act?

The Clean Air Act was first passed in 1963, aimed at controlling air pollution on a national level. It has been amended several times, notably in 1970 and 1990, to address various air quality issues.

What were the major amendments made to the Act?

The major amendments in 1970 expanded the federal government's role in regulating air pollution, while the 1990 amendments introduced a cap-and-trade system for sulfur dioxide emissions to combat acid rain.

How has the Clean Air Act impacted air quality in the U.S.?

The Clean Air Act has significantly improved air quality in the U.S., leading to reductions in pollutants like lead, carbon monoxide, and sulfur dioxide, resulting in better public health outcomes.

Are there any ongoing challenges related to air quality?

Yes, challenges remain, including addressing greenhouse gas emissions and ensuring compliance with air quality standards, especially in urban areas.