Nine years after the passing of the Clean Air Act, where do we stand? Scientists are gradually finding out why dirty air Is so harmful to ill persons with Dr. P. J. Lawther of Air Pollution Research Centre at St. Bartholomew's Hospital. Whenever the things they study are too big, too far off, or too hot to handle, scientists can make a model of these-but can they be sure their models truly represent reality?
Episode 9 of Season 2 from Horizon — available to stream in HD on any device.
Join the conversation
Sign in to leave a comment
No comments yet
Be the first to share your thoughts!
Recommended
Dan Snow’s Great Egyptian Adventure
Mexico Untamed
4x20: Quick Hits
My Killer Father: The Green Hollow Murders
Cruising to the Ends of the Earth
Should I Marry A Murderer?
Expedition Bigfoot
The Dead Files
Worst Ex Ever
Mystery at Blind Frog Ranch
Search for movies, TV shows, collections, manga, or people
Trending Now