Model Inter-Comparison Study for Asia (MICS-Asia) is a project aiming at improving air quality and climate models not only for enhancing scientific understanding of atmospheric environment but also for developing common scientific understanding for policy making in Asia. The Special Issue of MICS-Asia Phase III entitled “Regional assessment of air pollution and climate change over East and Southeast Asia: results from MICS-Asia Phase III” has been established and 25 papers were published until January 2021. See the details of MICS-Asia HERE and the Special Issue HERE.