Explanation:

The United Nations Conference on the Human Environment (also known as the Stockholm Conference) was an international conference convened under United Nations auspices held in Stockholm, Sweden from June 5-16, 1972. In 1972, Stockholm, Sweden, hosted the first United Nations Conference on the Human Environment, which was attended by 113 delegates and two heads of state (Olaf Palme of Sweden and Indira Gandhi of India). This conference raised a generation's awareness of an issue hitherto little talked about, the global environment.