I have been tackling global environmental problems by applying the theory of light scattering in the star atmosphere, which I studied in the astrophysics laboratory when I was in graduate school, to the earth atmosphere. To understand the global environment for complex and massive systems and data, an understanding of a wide range of scientific knowledge and advanced information technology are essential. Learn about global environmental problems we are currently facing, such as pollution and global warming, think about “what we can do” and “what we must do” to solve these environmental problems, and go one step further to acquire “the initiative to take action” to tackle environmental problems by utilizing the IT skills that each of you has acquired.