Fuente: The University of Arizona
Expuesto el: lunes, 26 de abril de 2010 19:28
Autor: jfitzen
Asunto: Scientists Study Centuries-Long Sierra Dry Spell
| More fires may be ahead for the Sierra Nevada, suggests a new study by the UA's Thomas Swetnam and his colleagues. The scientists studied tree rings on dead giant sequoias, the largest trees on Earth. |
