- The Desert Springs of Mexico's Cuatro Cienegas
NPR's John Burnett takes National Geographic's Radio Expeditions to Mexico's Cuatro Cienegas, a unique biological reserve.
- The Earth Revealed—Groundwater
Annenberg/CPB. This episode discusses the science and human impact on groundwater resources.
Scroll to Groundwater video and click on the "VOD" icon to view. One-time free registration may be required.
