Taking the occurrence of Los Angeles Olympic Games and the concept of green Olympics as milestones,the authors divide the evolution of the environment issue of modern Olympic Games into three stages,That is,the early,the middle,and the latest.

• 以洛杉矶奥运会和绿色奥运观念的产生为标志,将现代奥运会环境问题的演进划分为早、中、近期三个阶段。