Moreover, they suggested that if there was any residual bias, it was probably a slight cooling bias! (globalwarmingsolved.com)
This shift has resulted in a well documented increasing cool bias over the last several decades and is addressed by applying a correction to the data. (ncdc.noaa.gov)
This shift has resulted in a well documented increasing cool bias over the last several decades and is addressed by applying a correction to the data. (ncdc.noaa.gov)