Scientists have much to learn about the way aerosols affect regional and global climate. They are unsure whether aerosols are warming or cooling our planet.
Source: " class="external">http://earthobservatory.nasa.gov/Library/Aerosols/ See:
Colloquially, an aerosol (short for aerosol spray) is a canister holding a liquid under pressure from a compressed gas. When a valve is opened, the liquid is forced out of a small hole and emerges as a mist. Typical liquids dispensed in this way are deodorants and paints. An atomiser is a similar device that is pressurised by a hand-operated pump rather than by stored gas.\n