Windborne desert dust falls on high peaks, dampens Colorado River runoff

Monday, September 20, 2010 - 20:21 in Astronomy & Space

When the winds are right and the desert is dry, dust blows eastward from the semi-arid regions of the US Southwest. In a dust-up, Western style, small dark particles of the dust fall on the mountains' white snowfields, ultimately affecting the entire Colorado River watershed.

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