IGAC’s intellectual leadership is guided by its vision to link fundamental atmospheric chemistry research on emissions, atmospheric processes and atmospheric composition to global change and sustainability issues. In addition, IGAC seeks to enhance connections between strong laboratory, field, and modeling studies to address areas within atmospheric chemistry that benefit from international and interdisciplinary collaborations. IGAC’s vision is in large part implemented by its sponsored and endorsed activities. IGAC welcomes proposals for sponsorship of developing, new or existing activities that will help IGAC achieve its mission and implement its vision, please refer to the IGAC Sponsored Activity Expectations or further information.