In 1986, Hansen told Congress that the US had warmed 1-2 degrees since 1958, but his own graph showed no warming since 1958, and cooling since the 1930s.
Whither U.S. Climate?
By James Hansen, Reto Ruedy, Jay Glascoe and Makiko Sato — August 1999
in the U.S. there has been little temperature change in the past 50 years, the time of rapidly increasing greenhouse gases — in fact, there was a slight cooling throughout much of the country (Figure 2).