As of 1990, the IPCC didn’t see any Mann-made global warming.

In 1975, the National Academy Of Sciences didn’t see any global warming

In 1975, NCAR didn’t see any global warming

Hansen showed the US cooling :

Empirical evidence does not lend much support to the notion that climate is headed precipitately toward more extreme heat and drought. The drought of 1999 covered a smaller area than the 1988 drought, when the Mississippi almost dried up. And 1988 was a temporary inconvenience as compared with repeated droughts during the 1930s “Dust Bowl” that caused an exodus from the prairies, as chronicled in Steinbeck’s Grapes of Wrath.
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
NASA GISS: Science Briefs: Whither U.S. Climate?
NOAA and CRU didn’t see any US warming
February 04, 1989 Last week, scientists from the United States Commerce Department’s National Oceanic and Atmospheric Administration said that a study of temperature readings for the contiguous 48 states over the last century showed there had been no significant change in average temperature over that period. Dr. (Phil) Jones said in a telephone interview today that his own results for the 48 states agreed with those findings.
New York Times
US temperatures were much hotter in the 1930s


Scientists were more worried about global cooling
Continue reading →