Pollution seen from space
This is a map that measures air pollution. It has been made by Canadian researches, and canbe found on the NASA -website.
Note: particulate matter (PM) can come from both natural and human sources. In the region of the Saharan Desert in Northern Africa, the large quantities of desert dust are the main reason for the high PM concentrations. In Asia, the fast-growing industry and cities are the evildoers.