EDITORIAL

摘要

The current world population is approximately 7.2 billion, and it continues to increase by 70 to 80 million every year. Even though Japan sees decrease in population with the growing number of elderly, the population is increasing in the majority of the world and it is estimated to reach 9 billion by 2050. Human beings are a part of the organism, and they exist in the life system. When the life system, the organism excluding human beings, is damaged in any ways, this damage would risk human lives.