Preface. Acknowledgments. 1. Climate and its Variability: Global and Regional Perspective. 1-a) Long-range Transport of Pollutants Above the Eastern Mediterranean: Implications for Air Quality and Regional Climate; N. Mihalopoulos.- 1-b) African dust: its large-scale transport over the Atlantic Ocean and its impact on the Mediterranean region; J.M. Prospero.- 1-c) Radiative and Physiological Effects of Increased CO2, How does this interaction affect Climate in the Mediterranean Region?; L. Bounoua.- 1-d) Climate altering trace gases in Mediterranean area: Trends and source allocation; M. Maione.- 1-e) Key processes for dust emissions and their modeling; G. Bergametti, B. Marticorena, B. Laurent.- 2. Modelling of the Global and Regional Phenomena. 2-a) Climate/Water-cycle feedbacks in the Mediterranean: the role of land-use changes and the propagation of perturbations at the regional and global scale; M. Millan.- 2-b) Aerosols direct radiative forcing on Djougou (Northern Benin) during the AMMA dry season experiment; M. Malle et al.- 3. Climate and Regional Air Quality. 3-a) Impact of changing climate and emissions on surface ozone distributions and evolution; H. Tanimoto et al.- 3-b) Short and long-term transport of crustal and anthropogenic inorganic components of coarse and fine aerosols over Beirut, Lebanon; N. Saliba et al.- 4. Details of Chemical and Aerosols Processes. 4-a) Aerosols in global models — focus on Europe; M. Kanakidou.- 4-b) Measurements of ozone, Black Carbon and particle size distributions along a Mediterranean cruise track during the period: October 2005-October 2006; K. Velchev et al.- 4-c) Concentration and chemical composition of PM2.5 and PM 10- 2.5 in the north-eastern Mediterranean; N. Kubilay et al.- 4-d) Non-methane volatile organic compound measurements in the city centre of Wroclaw, Poland; A. Niedojadlo et al.- 4-e) Non-methane hydrocarbons (NMHC) variability in the eastern Mediterranean; C.Arsene et al.- 4-f) Representation of chemical detail in atmospheric models; M.J. Pilling.- 4-g) Photoenhanced uptake of NO2 on mineral dust; C. George et al.- 4-h) Gas phase processes relevant to the Mediterranean: Some new and important topics; I. Barnes, I. Bejan.- 5. Other presentations. 5-a) Climate change and its impacts in Morocco; M.S. Karrouk.- 5-b) The effect of climate changes on the disposal facility of natural occurring radioactive materials in Egypt; M. Abdel Geleel Mohamed.- 5-c) Analysis of down looking GPS occultation simulated data using least squares and abel inversions; A. El-Kutb Mousa, T. Tsuda.- 5-e) Presentation of MADEPODIM project; A. Azzi.- List of Participants. Authors Index. Subject Index