This document discusses several global environmental conferences and organizations. It summarizes the Stockholm Conference in 1972, where representatives from over 100 countries established the United Nations Environment Programme and agreed upon 26 principles in the Stockholm Declaration addressing issues such as pollution, conservation, and the relationship between environment and development. It also discusses the 1992 Earth Summit in Rio de Janeiro, where the Rio Declaration, Agenda 21, and a statement on forests were adopted. Finally, it outlines the Intergovernmental Panel on Climate Change, formed in 1988, which has produced assessment reports on climate change and the risks and impacts of human-induced warming.