Oops. The Hockey Stick That Never Was: Authors admit: ‘The 20th century portion of our paleotemperature stack is not statistically robust, cannot be considered representative of global temperature changes’

Pielke Jr.: (To be absolutely clear, I am not making a point about temperatures of the 20th century, but what can be concluded from the paper about temperatures of the 20th century.) Yet, you might recall that the NSF press release said something quite different: ‘What that [temperature reconstruction] history shows, the researchers say, is that during the last 5,000 years, the Earth on average cooled about 1.3 degrees Fahrenheit–until the last 100 years, when it warmed about 1.3 degrees F.’