The concentrations of black carbon particles in these areas were greater than current models would indicate. (en.ilmatieteenlaitos.fi)
Black carbon particles attract heat, warming the air around them if they remain suspended, and melting snow and ice if they settle on glaciers. (green.blogs.nytimes.com)
· A finding that black carbon particles increased the number of drops of water in clouds, while decreasing the size of those drops, a condition that can reduce or delay rain. (newscenter.lbl.gov)