After the Industrial Revolution, development of science and technology have supported our convenient life. On the other hand, anthropogenic activities have continued to influence global climate change and global warming. One of the most influential contributors of the change is “imbalance of chemical species”, and we are investigating the chemical species such as volatile organic carbon, greenhouse gases, black carbon and so on. Here, we introduce our research activities. We are “really” looking for new students to our lab. Please don’t hesitate to contact to me by e-mail or phone call if you are interested in our research.