As climate change increases the likelihood of wildfires in California, megacities in developing countries burn more fossil fuels and coastal cities striving to meet air quality standards deal with rising amounts of particulate emissions from ships, what does the future hold for the air we breathe? Three prominent atmospheric chemistry experts at UC San Diego discuss their latest research on atmospheric aerosols and explain how these microscopic particles in the atmosphere affect our health, environment and global climate change. (#14856)