1972 The Club of Rome publishes Limits to Growth, a report that predicts that if current growth trends continue unchanged, the limits to growth on the planet will be reached …
Jul 1972 Read More →
First Global Meeting
1972 The United Nations Conference on the Human Environment, meeting in Stockholm and attended by 113 nations, is the first global meeting of nations to consider environmental concerns The Conference …
Jun 1972 Read More →
Transportation’s Impact
1971 Development of supersonic transport raises concerns about impacts on climate, and the Climate Impact Assessment Program is created under the Department of Transportation Described as “the first major project …
Jan 1971 Read More →
Clean Air Act
1970 Congress enacts the Clean Air Act, in a near-unanimous endorsement of strong environmental protections In a remarkable show of bipartisanship, the Senate vote for the Clean Air Act is …
Sep 1970 Read More →
EPA Formed
1970 President Richard Nixon establishes the U.S. Environmental Protection Agency, and the National Environmental Policy Act of 1969 takes effect President Richard Nixon’s Special Message to Congress in establishing the …
Jul 1970 Read More →
First Computer Model
1967 Syukuro Manabe and Richard T. Wetherald are the first to use a computer model to explore the impact of increasing atmospheric carbon dioxide on the Earth’s climate Syukuro Manabe …
May 1967 Read More →
Presidential Acknowledgement
1965 President Lyndon Johnson states in a Special Message to Congress, “This generation has altered the composition of the atmosphere on a global scale through … a steady increase in carbon …
Feb 1965 Read More →
First Mention
1965 Roger Revelle contributes to the first mention of global warming in a government report, drawing an analogy between human-produced gases entering the global atmosphere and the effect of glass …
Jan 1965 Read More →
Oceanographers’ Proof
1957 American oceanographers Roger Revelle and Hans Suess demonstrate that CO2 levels in the air have increased as a result of the use of fossil fuels Roger Revelle and Hans Suess …
Jan 1957 Read More →
Plass Published
1956 The New York Times publishes a summary of the Gilbert Plass paper headlined “Warmer climate on the earth may be due to more carbon dioxide in the air” The …
Oct 1956 Read More →