True-color images of the San Juan Mountains in southwestern Colorado show a dramatic difference in snow appearance between 2008 and 2009. In 2009, dust has colored the snow dull brown and accelerated snow melt.
Published Jul 4, 2009
Scientist Tom Painter examines the differences between pure and dirty snow. A rise in dust can be a critical influence on snow-fed water supplies in the American West.
Published Sep 1, 2013
White mountaintops received a fresh dusting—and not of snow.
Published Mar 4, 2017
High-latitude springtime snow cover declined substantially between 1967 and 2012.
Published Jan 8, 2013
This satellite map of snow cover shows that every state in the contiguous U.S., except for Florida, received snow in January 2011.
Published Feb 25, 2011
What a difference one year has made in the snow cover over North America.
Published Mar 30, 2012
Acquired June 25, 2011, this natural-color image shows a dust storm over northern Afghanistan and neighboring countries.
Published Jun 27, 2011
