(note: excerpt from Geology.com)
Geology News - Earth Science Current Events
Dust from Sahara and Gobi Deserts Reaches USA
originally printed 11/29/2006
Dust storms in the Sahara and Gobi Deserts can drive tons of dust particles high into the atmosphere and into long distance transport.
Dusts from the African Sahara and Sahel are reaching the Caribbean and southern US states where they can damage coral reefs and cause respiratory problems in humans.
Also, dusts from the Asian Gobi and Takli Makan deserts are reaching the Hawaiian Islands and western US states. (image: USGS)
Hundreds of millions of tons of dust are making these long-distance trips each year. Evidence suggests that these dusts are responsible at least in part for a dramatic decline in coral reef health in the Caribbean and the incidence of respiratory problems in humans.
The USGS website has a good presentation on this topic which includes satellite images, data, graphs, descriptions and video interviews with the scientists who promote these ideas.
A sandstorm in the northwest African desert pushes tons of dust out over the Atlantic. Some of this dust could reach the Caribbean Islands and eastern United States. Image by NASA.