article_snippet.sent: I remember when I first went to college in Los Angeles in 1979, the air was so bad that you couldn't go running outside," President Obama said.
article_snippet.sent: we took action, and the air's a lot better.
article_snippet.sent: The President said what happened with Los Angeles' air proved that point.
article_snippet.sent: When the Clean Air Act was passed, not only was there a terrible smog in Los Angeles', the Clean Air Act was true in most metropolitan areas across the country," Obama said.
article_snippet.sent: The fact is that air quality has dramatically improved and it's been much cheaper than anybody expected, because technology advanced and people figured out how to do it.
article_snippet.sent: As a consequence, the American people are a lot healthier, in addition to being able to, you know, see the mountains in the background because it's not covered in smog.