Climate change issues should be resolved as an assessment of the system composed of climate, energy and landuse and other elements. Realistic solution of the countermeasure including various factors is the one of the missions of chemical engineering. The views related to climate change issue is important to determine future chemical engineering direction. The proposed symposium will invite experts in the field of climate system modeling, climate change impacts and adaptation, greenhouse gas reduction measures and climate policy research. Panel session opportunity can be included to activate discussions.