On March 20, 2002, a most severe sand storm in a decade hit
a vast area of China. The storm covered over 1.4 million square
kilometers area in 8 provinces and municipalities including
Beijing, Hebei, Liaoning, Neimenggu (Inner Mongolia), Gansu,
Tianjin, Jilin, Shanxi, and Heilongjiang. The lives of over
130 million residents were greatly affected.
The sand storm reached into upper atmosphere and travelled
to Korea, Japan and arrived in North America in a week.
This map is a few years old and already out-to-date.
Each year the edge of the desert advance toward Beijing, and will
reach it in a matter of a few years.