Post-Cold War, environmental degradation continued internally in the US even after the end of the Soviet-US Cold War. Threat was internal.
Herbert, B. (1990, November 23). “Good news – we’ve reduced the nuclear threat from abroad.” [Cartoon] The Washington Post. Retrieved from the Library of Congress, https://www.loc.gov/item/2012647262/.
A 1990 Herblock cartoon, copyright The Herb Block Foundation.