convener:Chiaki T. Oguchi(Institute for Environmental Science and Technology, Graduate School of Science and Engineering, Saitama University), Rie Hori, S.(Department of Earth Science, Faculty of Science, Ehime University), Yukihiro Takahashi(Department of Cosmosciences, Graduate School of Science, Hokkaido University), Claudia Jesus-Rydin(European Research Council), Chairperson:Rie Hori, Chiaki Oguchi