This Research Strategy consists of outline summaries of the Division’s core research in atmospheric model development and evaluation, as well as three major application areas in which air quality models are used for human exposure, ecosystems exposure, and climate change-air quality assessments. The Appendices contain White Papers on these application

areas, providing additional details on our research directions. I welcome your comments on this Research Strategy as we move to the implementation phase. Please do not hesitate to provide feedback on our plans.