Asia accommodates over 60% of the world's population and is the largest emission source of aerosols and their precursors in the world. These emissions could impinge significantly on regional and global climate depending on aerosol distribution, transport and evolution of optical, physical and chemical properties. To unravel the impact and interactions between the environmental and climate changes, field experiments have been conducted under the the East Asian Study of Tropospheric Aerosols: an International Regional Experiment (EAST-AIRe), the East Asian Study of Tropospheric Aerosols and Impact on Regional Climate (EAST-AIRc), and Atmospheric Radiation Measurements (ARM) Mobile Facility mission in China (AMF-China). During these experiments, extensive measurements were made from multiple ground stations and airborne sensors concerning meteorological and environmental variables. In combination with space-borne measurements, rich information has been gained pertaining to aerosol properties, meteorological regimes, cloud, radiation and precipitation, etc. Climate changes and the roles of aerosols are studied by means of data analysis and climate modeling.