Recent ecological disasters make human beings aware of changes in the Earth s climate. At the present time anthropogenic activities lead to the emission of greenhouse gases, pollutants, aerosols and ozone depleting substances and the scientific community in general feels responsible for understanding how changes in atmospheric chemistry can affect the Earth s climate. A NATO Advanced Research Workshop (ARW) was organized at Rabat (Morocco) on the 17-19th of November 2005 on the "Remote sensing of the Atmosphere for Environmental Security."

The first part of the proceedings describes the...