An experimental setup for the measurement of single scattering albedo of aerosol particles was described. The setup consisted of a nephelometer to measure aerosol light scattering coefficient, a photoacoustic spectrometer to measure aerosol light absorption coefficient, a Single Particle Aerodynamic Relaxation Time (SPART) Analyzer to measure aerosol aerodynamic size distribution, and an aethalometer to measure aerosol mass concentration. Simultaneous measurements of these parameters of a test carbonaceous aerosol were used to determine its single scattering albedo. At the other hand, a theoretical model based on a ＇＇two-stream approximation＇＇ was developed and used to calculate the effect of an atmospheric aerosol layer on either global or regional weather heating. It appears that carbonaceous particles in atmosphere may contribute to global temperature rise. Finally a method of measuring single scattering albedo of single particle by the use of an electrodynamic trap was suggested for studying the effect of different physical states and shapes of particles.