The amount of dust in the air has increased ten times over the recent 50 years (Pravda)

[trucknews]

The report from the British professor of geography, Andrew Goudie, became a sensation at the recent International Geographical Congress in Glasgow. According to the Oxford professor, so-called 4x4 SUV vehicles represent a real danger to the global ecology, no matter how paradoxical it might seem.

http://us.rd.yahoo.com/dailynews/rss...4518_dust.html