The document discusses the impact of the 1990 Clean Air Act Amendments. It notes that Zach Pilchen, a graduate of George Washington University Law School, is passionate about environmental law and the Clean Air Act. The Clean Air Act reduces air pollution from industrial and consumer sources like factories, cars, and trucks. The 1990 amendments are projected to prevent hundreds of thousands of deaths per year by reducing particulate matter in the air. Specifically, in 2020 the amendments are expected to prevent over 200,000 adult deaths from air pollution-related conditions and thousands of other cases of illness, resulting in economic benefits of over 5 million days of school and 17 million days of work saved.