Photo 1: The cloud carrying sand and dust from Asian deserts approaches Southeast Alaska, British Columbia, and the west coast of the United States on April 11,
2001. Image provided by the SeaWiFS Project, NASA/Goddard Space Flight Center, and ORBIMAGE

Photo 2: A massive cloud carrying sand and dust from deserts in Asia moves east over North and South Korea on its way to
the Pacific Ocean on January 2, 2000. A similar dust cloud recently reached Alaska. Image provided by the SeaWiFS Project,
NASA/Goddard Space Flight Center, and ORBIMAGE