This report focuses on the changes (positive or negative) that occurred in the state of the world environment in the decade following the United Nations Conference on the Human Environment convened at Stockholm in June 1972. It also brings into focus the major environmental issues encountered or likely to be encountered. The first section focuses on the changing approach to the environment, discussing the evolution of environmental concerns prior to 1972, the Stockholm Conference, and developments since the conference. Environmental trends and issues during the 1970s are discussed in the second section. These issues/trends are considered under two broad areas: the natural environment and man and the environment. Areas discussed under the natural environment include: atomsphere; oceans; water; lithosphere; and terrestrial biota. Areas discussed under man and the environment include: population; human settlements; human health; bioproductive systems; industry; energy; transport; tourism; environmental education and public awareness; and peace, security, and the environment. General conclusions and a list of suggested actions by the Governing Council of the United Nations Environment Programme are provided in the last two sections. (Author/JN)