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| 1972 || General || Treaty || The {{w|United Nations Conference on the Human Environment in Stockholm}} is held, gathering representatives of 113 nations to develop plans for international action to protect the world environment.<ref name="History of Air Pollution"/> || {{w|Sweden}}
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| 1972 || {{w|Water pollution}} || Treaty || The {{w|London Convention on the Prevention of Marine Pollution by Dumping of Wastes and Other Matter}} is adopted as an agreement to control pollution of the sea by dumping.<ref name="Ocean Dumping of Nuclear Waste"/> || {{w|United Kingdom}}
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| 1972 (June 5) || General || Program || {{w|United Nations Environment Programme}} is launched, with the purpose to guide and coordinate environmental activities within the {{w|United Nations}}.<ref>{{cite web |title=United Nations Environment Programme |url=https://www.britannica.com/topic/United-Nations-Environment-Programme |website=britannica.com |accessdate=30 April 2019}}</ref><ref>{{cite web |title=United Nations Environmental Programme (UNEP) established |url=http://www.environmentandsociety.org/tools/keywords/united-nations-environmental-programme-unep-established |website=environmentandsociety.org |accessdate=30 April 2019}}</ref> ||
