Expanded and updated with new findings and new features * New chapter on Global Climate providing a self-contained treatment of climate forcing, feedbacks, and climate sensitivity * New chapter on Atmospheric Organic Aerosols and new treatment of the statistical method of Positive Matrix Factorization * Updated treatments of physical meteorology, atmospheric nucleation, aerosol-cloud relationships, chemistry of biogenic hydrocarbons * Each topic developed from the fundamental science to the point of application to real-world problems * New problems at an introductory level to aid in classroom teaching