<Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> A dust storm is a meteorological phenomenon common in arid and semi-arid regions . Dust storms arise when a gust front or other strong wind blows loose sand and dirt from a dry surface . Fine particles are transported by saltation and suspension, a process that moves soil from one place and deposits it in another . </P> <P> Drylands around North Africa and the Arabian peninsula are the main terrestrial sources of airborne dust . It has been argued that recently, poor management of the Earth's drylands, such as neglecting the fallow system, are increasing dust storms size and frequency from desert margins and changing both the local and global climate, and also impacting local economies . </P>

Where do dust storms occur in the world