1972 On June 5 ~ 16, the United Nations held a conference on human environment in Stockholm, Sweden. This is the first conference in human history to study and protect the human environment all over the world. The meeting was attended by 1 13 countries, representing more than * * 1300 people. In addition to government delegations,

Before the meeting, morris strong, Secretary-General of the United Nations Conference on the Human Environment, entrusted 152 celebrities from 58 countries to form a large committee, with Dr. Rene Dubos as the head of the expert advisory group, and drafted an informal report for the meeting-"Only One Earth".

The conference put forward a global environmental slogan: there is only one earth.