Wednesday, April 23, 2014
Season 2014 Episode 4066 | 26m 47s | Video has closed captioning.
Climatologists review data to understand & predict weather patterns & trends. A look at how NC companies go about protecting the electric grid. And Professor Arthur Bogan talks about the evolution of mussels & snails.
Aired: 04/22/14
Problems Playing Video? | Closed Captioning