In matters relating to the environment the United Nations Conference on Environment and Development, held in June 1992, produced an "Earth Charter, "or declaration of basic principles for the conduct of nations and peoples with respect to environment and development; agreements on specific legal measures, including conventions on climate change and biodiversity, and principles for a framework agreement on forests; and an agenda for action.
1992年6月在里约热内卢召开的联合国环境与发展会议上,就有关环境的问题产生了一个“地球宪章”，换言之,宣布了各个国家和各个民族在环境与发展方面应遵循的基本行为准则,并就具体的法律措施达成了有关协议,包括气候变化和生物多样化协定和森林框架协议准则;此外还制定了一个行动日程表。
