BALTIMORE -- Reports of a powder in the air and on some vehicles in Maryland, northern Virginia and West Virginia have prompted an investigation by state environment officials in at least one state.
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Ice cores suggest dust, not CO2, once drove major climate shifts
Ice core records stretching back hundreds of thousands of years show that airborne mineral dust, not carbon dioxide alone, played a leading role in driving some of the most dramatic climate shifts in ...
Add Yahoo as a preferred source to see more of our stories on Google. On a hot sunny day, you may spot vortexes of blowing dust spiraling upward and throwing debris everywhere. But as any Grand Canyon ...
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