- B.A. in Mathematics, University of Cambridge (1945).
- Fellow of Trinity College, Cambridge, (1946–47).
- Attended Cornell University in 1947 with a Commonwealth Fellowship.
- Research Fellow, University of Birmingham, 1949–51
- Professor of physics at Cornell University, 1951.
According to one profile, “His most useful contribution to science was the unification of the three versions of quantum electrodynamics invented by Feynman, Schwinger and Tomonaga. Cornell University made him a professor without bothering about his lack of Ph.D.” 
Stance on Climate Change
“As a result of the burning of coal and oil, the driving of cars, and other human activities, the carbon dioxide in the atmosphere is increasing at a rate of about half a percent per year … the physical effects of carbon dioxide are seen in changes of rainfall, cloudiness, wind strength, and temperature, which are customarily lumped together in the misleading phrase 'global warming.'” 
“'The costs of what Gore tells us to do would be extremely large,' Dyson said. 'By restricting CO2 you make life more expensive and hurt the poor. I’m concerned about the Chinese'.” 
March 25, 2009
Dyson is the feature of an 8000 word article  in The New York Times titled “The Civil Heretic.” The Times quotes Dyson as saying global warming may indicate that “the climate is actually improving rather than getting worse” because increased carbon would promote forest growth and crop yields. However, the internationally-regarded IPCC concludes  that “climate change is expected to lead to salinisation and desertification of agricultural land.”
Although Dyson is a brilliant mind, and is revered as a physicist, he does not have a background in climate science. DeSmogBlog speculated how it seems strange  that the Times would choose Nicholas Dawidoff, a sports writer (albeit an accomplished sports writer), to research and write an article on climate change.
June 12, 2008
Freeman Dyson publishes “The Question of Global Warming “ through The New York Review of Books. Dyson writes, “the only plausible explanation of the annual wiggle,” of CO2's PPM measurements, “and its variation with latitude is that it is due to the seasonal growth and decay of annual vegetation, especially deciduous forests, in temperate latitudes north and south.” 
According to a search of 22,000 academic journals, Dyson has published over 50 peer-reviewed articles mainly in the area of quantum mechanics.
“The Civil Heretic ,” The New York Times, March 25, 2009.
Freeman Dyson. “What a World! ”, The New York Review of Books, May 15, 2003.
“freemon dyson: professor emeritus, sns ,” sns.ias.edu. Accessed December 6, 2011.
Freeman Dyson. “HERETICAL THOUGHTS ABOUT SCIENCE AND SOCIETY ,” Edge, April 8, 2007.
Michael Tobis. “Dyson Exegesis ,” Only In It For The Gold, August 12, 2007.
“Freeman Dyson; Expert ,” Heartland Institute.
Freeman Dyson. ”The Question of Global Warming ,” The New York Review of Books, June 12, 2008.