Wednesday, May 6, 2009

Migrating Sand Dunes

Listen to a PODCAST from the USGS by clicking the above link.

"Sand Dunes on the Loose Due to Climate Change
Host: Jessica Robertson

Climate change is increasing the mobility of sand dunes in the southwest, posing threats to roadways, infrastructure, human health, cultural practices of the Navajo Nation, and much more. Vegetation on dunes serves as stabilizers, but as the climate warms and precipitation decreases, there is less vegetation growth.

USGS scientist Margaret Hiza and intern Leanna Begay discuss their research to understand the dunes' plant diversity and what changes are occurring."

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