Reply #2: One of my favorite NOVA's was about acid rain [View All]

[HereSince1628]

and it made a point of how auto emissions create NOX's that are really tough on trees, too bad it's not available as DVD, my old VHS tape is about worn out (The NOVA was also a great example of how science uses multiple methods--not just THE scientific method. I used it for nearly two decades in introductory and non-majors courses on science the kids laughed at the cornball 'Putin on the Ritz' music, but the content of the video was great.)