"The Green Revolution, Peace, and Humanity". Norman Borlaug's Nobel lecture in the auditorium of the Nobel Institute, www.nobelprize.org. December 11, 1970.
David Suzuki, Ian Hanington (2017). “Just Cool It!: The Climate Crisis and What We Can Do - A Post-Paris Agreement Game Plan”, p.70, Greystone Books Ltd
"Al Gore, ‘Inconvenient Truth’ Author And Global-Warming Expert, Talks About Change". Interview with Leigh Haber, www.huffingtonpost.com. March 29, 2013.