前言1972年罗马会议“生长界线”发表以来,已经过去20多年了。这期间,地球范围的环境与森林资源问题受到了全世界的关注,已经成为国际政治的重要课题。臭氧层的破坏、地球变暖、酸雨、热带雨林的减少等环境问题,成了日本大众没有一天不谈论的话题。世 Preface More than 20 years have passed since the 1972 Rome Conference “Growing Boundary” was published. During this period, the issue of global environment and forest resources has drawn worldwide attention and has become an important issue in international politics. Environmental problems such as the destruction of the ozone layer, global warming, acid rain and the reduction of tropical rain forests have become the topics that the Japanese public did not talk about for a day. world