Agence France-Presse: Pollution from Asia’s booming economies rises into the stratosphere during the monsoon season then circles the world for years, according to a report out Thursday. A study by the Boulder, Colorado-based National Center for Atmospheric Research (NCAR) said the strong air circulation patterns linked to Asia’s monsoon rainy season serves as a pathway for black carbon, sulfur dioxide, nitrogen oxides and other pollutants to rise into the stratosphere. The stratosphere is the layer …