[Machine Translation] Major changes are emerging in the global environment. Is the destructive tropical storm that hit North America and Asia in 1996 a harbinger of decisive changes in the global environment? There is concern that the abnormally high concentration of carbon dioxide in the atmosphere will lead to global warming. Loss of forests and acid rain are also serious conditions. The 20th century was said to be shifting from the "economic century" to the "environmental century. In the 1960s, which marked the turning point, Rachel Carson was a pioneer who spoke of the coming of the environmental century. Her "Spring of Silence" is a book that focuses on the issue of pesticides, but it is also a book that grasps today's environmental problems from a very fundamental point of view, and is a must-read for those who want to think about the "modern age.