Want better video quality? Sign in to access HD streaming!


Want to watch better-quality PBS Video? Sign in to access HD streaming!

When you sign in, you'll become a PBS Insider and we'll share your contact information with your local PBS station. You may receive updates to help you stay connected with what's happening online and in your community. Privacy Policy


May 10, 2012

  • Aired: 05/10/2012
  • 27:44
  • Rating: NR
The Tree Ring lab at the UofA has amassed nearly three million samples since A. E. Douglass established it in 1937. A new study of the Arizona Mexico border region takes a look at the state of water in the desert. And Gabriel Sullivan and his collaborative music project Taraf de Tucson have started to make some noise around Tucson.
Embed Options
Close ×
May 10, 2012
May 10, 2012
A new study of the Arizona/Mexico border region takes a look at water in the desert.
Please copy this text to your clipboard.
Problems Playing Video ?
PBS Anywhere - funder area
Related Links:


Watch videos from your favorite PBS KIDS shows with the PBS KIDS Video app for your tablet or phone.

Masterpiece Collection

Own it now! Victoria, Poldark, Downton Abbey on DVD & Blu-ray. Visit ShopPBS.


Idaho Public Television helps all of us explore new worlds and ideas. Give Now