He also noted that the Velvet Revolution, which had radically altered the political, economic, social and environmental landscape of the Czech Republic, had coincided with the entry into force of the Montreal Protocol.
他还指出，曾经剧烈地改变捷克共和国的政治、经济、社会和环境格局的丝绒革命爆发之时正是《蒙特利尔议定书》生效之日。