Earth System: Drought and Air QualityResumen:
Droughts claim more victims each year than any other natural disaster. Depending on where it occurs and how long it persists, the cost of a drought can run into the billions of dollars. Droughts cause more than economic hardship, however. As this video segment adapted from NASA's Goddard Space Flight Center demonstrates, droughts have a complex web of impacts that also affect us socially and environmentally.
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Publicado por: Teachers Domain
A beautiful extreme long shot of the U.S. Capitol building's West Front is shown from across...07/19/2011 - 7:10pm